84816981404 has 24 divisors (see below), whose sum is σ = 152856211200. Its totient is φ = 41161975920.

The previous prime is 84816981397. The next prime is 84816981419. The reversal of 84816981404 is 40418961848.

It is a super-2 number, since 2×84816981404² (a number of 23 digits) contains 22 as substring.

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, 2256002 + ... + 2293289.

It is an arithmetic number, because the mean of its divisors is an integer number (6369008800).

Almost surely, 2^84816981404 is an apocalyptic number.

It is an amenable number.

84816981404 is a deficient number, since it is larger than the sum of its proper divisors (68039229796).

84816981404 is a wasteful number, since it uses less digits than its factorization.

84816981404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4549433 (or 4549431 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 53.

The spelling of 84816981404 in words is "eighty-four billion, eight hundred sixteen million, nine hundred eighty-one thousand, four hundred four".