84890870735212 has 24 divisors (see below), whose sum is σ = 148617464990400. Its totient is φ = 42428738610960.

The previous prime is 84890870735201. The next prime is 84890870735213. The reversal of 84890870735212 is 21253707809848.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (84890870735213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809766343 + ... + 809871169.

It is an arithmetic number, because the mean of its divisors is an integer number (6192394374600).

Almost surely, 2^{84890870735212} is an apocalyptic number.

It is an amenable number.

84890870735212 is a deficient number, since it is larger than the sum of its proper divisors (63726594255188).

84890870735212 is a wasteful number, since it uses less digits than its factorization.

84890870735212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182541 (or 182539 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 64.

The spelling of 84890870735212 in words is "eighty-four trillion, eight hundred ninety billion, eight hundred seventy million, seven hundred thirty-five thousand, two hundred twelve".