86825051545640 has 64 divisors (see below), whose sum is σ = 200141782848000. Its totient is φ = 33879454466560.

The previous prime is 86825051545597. The next prime is 86825051545667. The reversal of 86825051545640 is 4654515052868.

It is a self number, because there is not a number n which added to its sum of digits gives 86825051545640.

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, 13215521 + ... + 18662799.

It is an arithmetic number, because the mean of its divisors is an integer number (3127215357000).

Almost surely, 2^{86825051545640} is an apocalyptic number.

It is an amenable number.

86825051545640 is an abundant number, since it is smaller than the sum of its proper divisors (113316731302360).

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

86825051545640 is a wasteful number, since it uses less digits than its factorization.

86825051545640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5457050 (or 5457046 counting only the distinct ones).

The product of its (nonzero) digits is 46080000, while the sum is 59.

The spelling of 86825051545640 in words is "eighty-six trillion, eight hundred twenty-five billion, fifty-one million, five hundred forty-five thousand, six hundred forty".