77136432356 has 12 divisors (see below), whose sum is σ = 134992893168. Its totient is φ = 38567034312.

The previous prime is 77136432323. The next prime is 77136432379. The reversal of 77136432356 is 65323463177.

It is a super-2 number, since 2×77136432356² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77136432356.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139466 + ... + 416801.

It is an arithmetic number, because the mean of its divisors is an integer number (11249407764).

Almost surely, 2^77136432356 is an apocalyptic number.

It is an amenable number.

77136432356 is a deficient number, since it is larger than the sum of its proper divisors (57856460812).

77136432356 is a wasteful number, since it uses less digits than its factorization.

77136432356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590938 (or 590936 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 47.

The spelling of 77136432356 in words is "seventy-seven billion, one hundred thirty-six million, four hundred thirty-two thousand, three hundred fifty-six".