253779152889 has 16 divisors (see below), whose sum is σ = 339455131200. Its totient is φ = 168644990976.

The previous prime is 253779152849. The next prime is 253779152903. The reversal of 253779152889 is 988251977352.

It is a de Polignac number, because none of the positive numbers 2^k-253779152889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253779152819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2942817 + ... + 3027825.

It is an arithmetic number, because the mean of its divisors is an integer number (21215945700).

Almost surely, 2^253779152889 is an apocalyptic number.

It is an amenable number.

253779152889 is a deficient number, since it is larger than the sum of its proper divisors (85675978311).

253779152889 is a wasteful number, since it uses less digits than its factorization.

253779152889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88184.

The product of its digits is 76204800, while the sum is 66.

The spelling of 253779152889 in words is "two hundred fifty-three billion, seven hundred seventy-nine million, one hundred fifty-two thousand, eight hundred eighty-nine".