253057368639 has 8 divisors (see below), whose sum is σ = 357257461680. Its totient is φ = 158781094016.

The previous prime is 253057368631. The next prime is 253057368653. The reversal of 253057368639 is 936863750352.

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

It is a cyclic number.

It is not a de Polignac number, because 253057368639 - 2³ = 253057368631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253057368631) 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, 2480954544 + ... + 2480954645.

It is an arithmetic number, because the mean of its divisors is an integer number (44657182710).

Almost surely, 2^253057368639 is an apocalyptic number.

253057368639 is a deficient number, since it is larger than the sum of its proper divisors (104200093041).

253057368639 is a wasteful number, since it uses less digits than its factorization.

253057368639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4961909209.

The product of its (nonzero) digits is 24494400, while the sum is 57.

The spelling of 253057368639 in words is "two hundred fifty-three billion, fifty-seven million, three hundred sixty-eight thousand, six hundred thirty-nine".