77630633581388 has 24 divisors (see below), whose sum is σ = 138173021039760. Its totient is φ = 38152787653440.

The previous prime is 77630633581357. The next prime is 77630633581399. The reversal of 77630633581388 is 88318533603677.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18066131 + ... + 21946442.

It is an arithmetic number, because the mean of its divisors is an integer number (5757209209990).

Almost surely, 2^{77630633581388} is an apocalyptic number.

It is an amenable number.

77630633581388 is a deficient number, since it is larger than the sum of its proper divisors (60542387458372).

77630633581388 is a wasteful number, since it uses less digits than its factorization.

77630633581388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40020857 (or 40020855 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 68.

The spelling of 77630633581388 in words is "seventy-seven trillion, six hundred thirty billion, six hundred thirty-three million, five hundred eighty-one thousand, three hundred eighty-eight".