86657769767 has 16 divisors (see below), whose sum is σ = 87675255360. Its totient is φ = 85647585792.

The previous prime is 86657769763. The next prime is 86657769787. The reversal of 86657769767 is 76796775668.

It is a cyclic number.

It is not a de Polignac number, because 86657769767 - 2² = 86657769763 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86657769694 and 86657769703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86657769763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26637713 + ... + 26640965.

It is an arithmetic number, because the mean of its divisors is an integer number (5479703460).

Almost surely, 2^86657769767 is an apocalyptic number.

86657769767 is a deficient number, since it is larger than the sum of its proper divisors (1017485593).

86657769767 is a wasteful number, since it uses less digits than its factorization.

86657769767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282.

The product of its digits is 1120210560, while the sum is 74.

The spelling of 86657769767 in words is "eighty-six billion, six hundred fifty-seven million, seven hundred sixty-nine thousand, seven hundred sixty-seven".