80774599680 has 1232 divisors, whose sum is σ = 328625052480. Its totient is φ = 18919194624.

The previous prime is 80774599651. The next prime is 80774599721. The reversal of 80774599680 is 8699547708.

It is a super-2 number, since 2×80774599680² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1205591007 + ... + 1205591073.

Almost surely, 2^80774599680 is an apocalyptic number.

80774599680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80774599680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164312526240).

80774599680 is an abundant number, since it is smaller than the sum of its proper divisors (247850452800).

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

80774599680 is a wasteful number, since it uses less digits than its factorization.

80774599680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 63.

The spelling of 80774599680 in words is "eighty billion, seven hundred seventy-four million, five hundred ninety-nine thousand, six hundred eighty".