77717467132 has 24 divisors (see below), whose sum is σ = 138065625936. Its totient is φ = 38270398848.

The previous prime is 77717467129. The next prime is 77717467187. The reversal of 77717467132 is 23176471777.

It is a self number, because there is not a number n which added to its sum of digits gives 77717467132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1303608 + ... + 1361920.

It is an arithmetic number, because the mean of its divisors is an integer number (5752734414).

Almost surely, 2^77717467132 is an apocalyptic number.

It is an amenable number.

77717467132 is a deficient number, since it is larger than the sum of its proper divisors (60348158804).

77717467132 is a wasteful number, since it uses less digits than its factorization.

77717467132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63357 (or 63355 counting only the distinct ones).

The product of its digits is 2420208, while the sum is 52.

The spelling of 77717467132 in words is "seventy-seven billion, seven hundred seventeen million, four hundred sixty-seven thousand, one hundred thirty-two".