77536863632 has 20 divisors (see below), whose sum is σ = 156759312000. Its totient is φ = 37082847648.

The previous prime is 77536863631. The next prime is 77536863647. The reversal of 77536863632 is 23636863577.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77536863631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105348632 + ... + 105349367.

It is an arithmetic number, because the mean of its divisors is an integer number (7837965600).

Almost surely, 2^77536863632 is an apocalyptic number.

It is an amenable number.

77536863632 is an abundant number, since it is smaller than the sum of its proper divisors (79222448368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77536863632 is a wasteful number, since it uses less digits than its factorization.

77536863632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210698030 (or 210698024 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 56.

The spelling of 77536863632 in words is "seventy-seven billion, five hundred thirty-six million, eight hundred sixty-three thousand, six hundred thirty-two".