86857243802 has 16 divisors (see below), whose sum is σ = 150995290752. Its totient is φ = 36700243440.

The previous prime is 86857243799. The next prime is 86857243831. The reversal of 86857243802 is 20834275868.

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, 43689773 + ... + 43691760.

It is an arithmetic number, because the mean of its divisors is an integer number (9437205672).

Almost surely, 2^86857243802 is an apocalyptic number.

86857243802 is a deficient number, since it is larger than the sum of its proper divisors (64138046950).

86857243802 is a wasteful number, since it uses less digits than its factorization.

86857243802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87381613.

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 86857243802 in words is "eighty-six billion, eight hundred fifty-seven million, two hundred forty-three thousand, eight hundred two".