8691016077072 has 80 divisors (see below), whose sum is σ = 28510211479680. Its totient is φ = 2483147449728.

The previous prime is 8691016077047. The next prime is 8691016077091. The reversal of 8691016077072 is 2707706101968.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1437003603 + ... + 1437009650.

It is an arithmetic number, because the mean of its divisors is an integer number (356377643496).

Almost surely, 2^{8691016077072} is an apocalyptic number.

It is an amenable number.

8691016077072 is an abundant number, since it is smaller than the sum of its proper divisors (19819195402608).

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

8691016077072 is a wasteful number, since it uses less digits than its factorization.

8691016077072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2874013277 (or 2874013265 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 8691016077072 in words is "eight trillion, six hundred ninety-one billion, sixteen million, seventy-seven thousand, seventy-two".