84464641790 has 24 divisors (see below), whose sum is σ = 158934044808. Its totient is φ = 32316904400.

The previous prime is 84464641769. The next prime is 84464641823. The reversal of 84464641790 is 9714646448.

It is a happy number.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7978136 + ... + 7988715.

It is an arithmetic number, because the mean of its divisors is an integer number (6622251867).

Almost surely, 2^84464641790 is an apocalyptic number.

84464641790 is a deficient number, since it is larger than the sum of its proper divisors (74469403018).

84464641790 is a wasteful number, since it uses less digits than its factorization.

84464641790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15966904 (or 15966881 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 84464641790 in words is "eighty-four billion, four hundred sixty-four million, six hundred forty-one thousand, seven hundred ninety".