77611772036 has 12 divisors (see below), whose sum is σ = 135829166928. Its totient is φ = 38803438632.

The previous prime is 77611771999. The next prime is 77611772039. The reversal of 77611772036 is 63027711677.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (77611772039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539546 + ... + 668081.

It is an arithmetic number, because the mean of its divisors is an integer number (11319097244).

Almost surely, 2^77611772036 is an apocalyptic number.

It is an amenable number.

77611772036 is a deficient number, since it is larger than the sum of its proper divisors (58217394892).

77611772036 is a wasteful number, since it uses less digits than its factorization.

77611772036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223698 (or 1223696 counting only the distinct ones).

The product of its (nonzero) digits is 518616, while the sum is 47.

The spelling of 77611772036 in words is "seventy-seven billion, six hundred eleven million, seven hundred seventy-two thousand, thirty-six".