77488356272 has 20 divisors (see below), whose sum is σ = 150187035480. Its totient is φ = 38730411648.

The previous prime is 77488356247. The next prime is 77488356293. The reversal of 77488356272 is 27265388477.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 813893 + ... + 904100.

It is an arithmetic number, because the mean of its divisors is an integer number (7509351774).

Almost surely, 2^77488356272 is an apocalyptic number.

It is an amenable number.

77488356272 is a deficient number, since it is larger than the sum of its proper divisors (72698679208).

77488356272 is a wasteful number, since it uses less digits than its factorization.

77488356272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720820 (or 1720814 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 59.

The spelling of 77488356272 in words is "seventy-seven billion, four hundred eighty-eight million, three hundred fifty-six thousand, two hundred seventy-two".