253879127961 has 16 divisors (see below), whose sum is σ = 347692021824. Its totient is φ = 164660485824.

The previous prime is 253879127927. The next prime is 253879127963. The reversal of 253879127961 is 169721978352.

It is a happy number.

It is not a de Polignac number, because 253879127961 - 2²⁷ = 253744910233 is a prime.

It is a super-2 number, since 2×253879127961² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 253879127895 and 253879127904.

It is not an unprimeable number, because it can be changed into a prime (253879127963) 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, 944871 + ... + 1183443.

It is an arithmetic number, because the mean of its divisors is an integer number (21730751364).

Almost surely, 2^253879127961 is an apocalyptic number.

It is an amenable number.

253879127961 is a deficient number, since it is larger than the sum of its proper divisors (93812893863).

253879127961 is a wasteful number, since it uses less digits than its factorization.

253879127961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248200.

The product of its digits is 11430720, while the sum is 60.

The spelling of 253879127961 in words is "two hundred fifty-three billion, eight hundred seventy-nine million, one hundred twenty-seven thousand, nine hundred sixty-one".