77532716799 has 12 divisors (see below), whose sum is σ = 118579449456. Its totient is φ = 48647979072.

The previous prime is 77532716783. The next prime is 77532716839. The reversal of 77532716799 is 99761723577.

77532716799 is a `hidden beast` number, since 7 + 7 + 532 + 7 + 1 + 6 + 7 + 99 = 666.

It is not a de Polignac number, because 77532716799 - 2⁴ = 77532716783 is a prime.

It is a super-2 number, since 2×77532716799² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77532716759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253374739 + ... + 253375044.

It is an arithmetic number, because the mean of its divisors is an integer number (9881620788).

Almost surely, 2^77532716799 is an apocalyptic number.

77532716799 is a deficient number, since it is larger than the sum of its proper divisors (41046732657).

77532716799 is a wasteful number, since it uses less digits than its factorization.

77532716799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506749806 (or 506749803 counting only the distinct ones).

The product of its digits is 35006580, while the sum is 63.

The spelling of 77532716799 in words is "seventy-seven billion, five hundred thirty-two million, seven hundred sixteen thousand, seven hundred ninety-nine".