77630633581382 has 96 divisors (see below), whose sum is σ = 141053907409920. Its totient is φ = 31911061008960.

The previous prime is 77630633581357. The next prime is 77630633581399. The reversal of 77630633581382 is 28318533603677.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1022345957 + ... + 1022421887.

It is an arithmetic number, because the mean of its divisors is an integer number (1469311535520).

Almost surely, 2^{77630633581382} is an apocalyptic number.

77630633581382 is a deficient number, since it is larger than the sum of its proper divisors (63423273828538).

77630633581382 is a wasteful number, since it uses less digits than its factorization.

77630633581382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78346 (or 78339 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 62.

The spelling of 77630633581382 in words is "seventy-seven trillion, six hundred thirty billion, six hundred thirty-three million, five hundred eighty-one thousand, three hundred eighty-two".