84672518013 has 6 divisors (see below), whose sum is σ = 122304748254. Its totient is φ = 56448345336.

The previous prime is 84672517991. The next prime is 84672518053. The reversal of 84672518013 is 31081527648.

84672518013 is a `hidden beast` number, since 8 + 467 + 2 + 5 + 180 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 61525329849 + 23147188164 = 248043^2 + 152142^2 .

It is not a de Polignac number, because 84672518013 - 2³⁴ = 67492648829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84672518013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84672518053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4704028770 + ... + 4704028787.

It is an arithmetic number, because the mean of its divisors is an integer number (20384124709).

Almost surely, 2^84672518013 is an apocalyptic number.

It is an amenable number.

84672518013 is a deficient number, since it is larger than the sum of its proper divisors (37632230241).

84672518013 is a wasteful number, since it uses less digits than its factorization.

84672518013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9408057563 (or 9408057560 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 84672518013 in words is "eighty-four billion, six hundred seventy-two million, five hundred eighteen thousand, thirteen".