77201471560 has 64 divisors (see below), whose sum is σ = 182949840000. Its totient is φ = 29261861376.

The previous prime is 77201471551. The next prime is 77201471563. The reversal of 77201471560 is 6517410277.

It is a happy number.

It is a super-2 number, since 2×77201471560² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (77201471563) 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 15 ways as a sum of consecutive naturals, for example, 293685 + ... + 490564.

It is an arithmetic number, because the mean of its divisors is an integer number (2858591250).

Almost surely, 2^77201471560 is an apocalyptic number.

It is an amenable number.

77201471560 is an abundant number, since it is smaller than the sum of its proper divisors (105748368440).

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

77201471560 is a wasteful number, since it uses less digits than its factorization.

77201471560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784390 (or 784386 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 77201471560 in words is "seventy-seven billion, two hundred one million, four hundred seventy-one thousand, five hundred sixty".