86461987776 has 56 divisors (see below), whose sum is σ = 229654272720. Its totient is φ = 28708503552.

The previous prime is 86461987769. The next prime is 86461987793. The reversal of 86461987776 is 67778916468.

It is a self number, because there is not a number n which added to its sum of digits gives 86461987776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826771 + ... + 925458.

Almost surely, 2^86461987776 is an apocalyptic number.

It is an amenable number.

86461987776 is an abundant number, since it is smaller than the sum of its proper divisors (143192284944).

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

86461987776 is a wasteful number, since it uses less digits than its factorization.

86461987776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752501 (or 1752491 counting only the distinct ones).

The product of its digits is 170698752, while the sum is 69.

The spelling of 86461987776 in words is "eighty-six billion, four hundred sixty-one million, nine hundred eighty-seven thousand, seven hundred seventy-six".