253868910351 has 16 divisors (see below), whose sum is σ = 389009030400. Its totient is φ = 144257511168.

The previous prime is 253868910331. The next prime is 253868910371. The reversal of 253868910351 is 153019868352.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (253868910331) and next prime (253868910371).

It is not a de Polignac number, because 253868910351 - 2²⁵ = 253835355919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253868910294 and 253868910303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253868910331) 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, 33764386 + ... + 33771903.

It is an arithmetic number, because the mean of its divisors is an integer number (24313064400).

Almost surely, 2^253868910351 is an apocalyptic number.

253868910351 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

253868910351 is a deficient number, since it is larger than the sum of its proper divisors (135140120049).

253868910351 is a wasteful number, since it uses less digits than its factorization.

253868910351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67536478.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 253868910351 in words is "two hundred fifty-three billion, eight hundred sixty-eight million, nine hundred ten thousand, three hundred fifty-one".