84924702729 has 12 divisors (see below), whose sum is σ = 122705556532. Its totient is φ = 56599603200.

The previous prime is 84924702697. The next prime is 84924702739. The reversal of 84924702729 is 92720742948.

It is a happy number.

84924702729 is a `hidden beast` number, since 84 + 92 + 470 + 2 + 7 + 2 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43796862729 + 41127840000 = 209277^2 + 202800^2 .

It is not a de Polignac number, because 84924702729 - 2⁵ = 84924702697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84924702739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1373512 + ... + 1434009.

Almost surely, 2^84924702729 is an apocalyptic number.

It is an amenable number.

84924702729 is a deficient number, since it is larger than the sum of its proper divisors (37780853803).

84924702729 is a wasteful number, since it uses less digits than its factorization.

84924702729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810888 (or 2810885 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 84924702729 in words is "eighty-four billion, nine hundred twenty-four million, seven hundred two thousand, seven hundred twenty-nine".