86263834640 has 40 divisors (see below), whose sum is σ = 203556912000. Its totient is φ = 33990523776.

The previous prime is 86263834619. The next prime is 86263834693. The reversal of 86263834640 is 4643836268.

It is a tau number, because it is divible by the number of its divisors (40).

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, 8041640 + ... + 8052359.

It is an arithmetic number, because the mean of its divisors is an integer number (5088922800).

Almost surely, 2^86263834640 is an apocalyptic number.

86263834640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86263834640 is an abundant number, since it is smaller than the sum of its proper divisors (117293077360).

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

86263834640 is a wasteful number, since it uses less digits than its factorization.

86263834640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16094079 (or 16094073 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 50.

The spelling of 86263834640 in words is "eighty-six billion, two hundred sixty-three million, eight hundred thirty-four thousand, six hundred forty".