84975724799 has 16 divisors (see below), whose sum is σ = 102987779328. Its totient is φ = 68445171072.

The previous prime is 84975724793. The next prime is 84975724831. The reversal of 84975724799 is 99742757948.

It is a cyclic number.

It is not a de Polignac number, because 84975724799 - 2¹² = 84975720703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84975724793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478757 + ... + 631790.

It is an arithmetic number, because the mean of its divisors is an integer number (6436736208).

Almost surely, 2^84975724799 is an apocalyptic number.

84975724799 is a deficient number, since it is larger than the sum of its proper divisors (18012054529).

84975724799 is a wasteful number, since it uses less digits than its factorization.

84975724799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111214.

The product of its digits is 320060160, while the sum is 71.

The spelling of 84975724799 in words is "eighty-four billion, nine hundred seventy-five million, seven hundred twenty-four thousand, seven hundred ninety-nine".