80475477124 has 81 divisors (see below), whose sum is σ = 171452206821. Its totient is φ = 32952501120.

The previous prime is 80475477119. The next prime is 80475477127. The reversal of 80475477124 is 42177457408.

The square root of 80475477124 is 283682.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 14117717124 + 66357760000 = 118818^2 + 257600^2 .

It is a super-2 number, since 2×80475477124² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (80475477127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 91345164 + ... + 91346044.

Almost surely, 2^80475477124 is an apocalyptic number.

80475477124 is the 283682-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80475477124

80475477124 is an abundant number, since it is smaller than the sum of its proper divisors (90976729697).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80475477124 is an equidigital number, since it uses as much as digits as its factorization.

80475477124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 49.

Multiplying 80475477124 by its sum of digits (49), we get a square (3943298379076 = 1985774²).

80475477124 divided by its sum of digits (49) gives a square (1642356676 = 40526²).

The spelling of 80475477124 in words is "eighty billion, four hundred seventy-five million, four hundred seventy-seven thousand, one hundred twenty-four".