53439794709 has 8 divisors (see below), whose sum is σ = 81432068160. Its totient is φ = 30537025536.

The previous prime is 53439794701. The next prime is 53439794711. The reversal of 53439794709 is 90749793435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53439794709 - 2³ = 53439794701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53439794701) 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, 1272376044 + ... + 1272376085.

It is an arithmetic number, because the mean of its divisors is an integer number (10179008520).

Almost surely, 2^53439794709 is an apocalyptic number.

It is an amenable number.

53439794709 is a deficient number, since it is larger than the sum of its proper divisors (27992273451).

53439794709 is a wasteful number, since it uses less digits than its factorization.

53439794709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544752139.

The product of its (nonzero) digits is 25719120, while the sum is 60.

The spelling of 53439794709 in words is "fifty-three billion, four hundred thirty-nine million, seven hundred ninety-four thousand, seven hundred nine".