253404887937 has 16 divisors (see below), whose sum is σ = 342021727488. Its totient is φ = 166863246480.

The previous prime is 253404887921. The next prime is 253404887999. The reversal of 253404887937 is 739788404352.

It is a happy number.

It is not a de Polignac number, because 253404887937 - 2⁴ = 253404887921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (253403887937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002762 + ... + 1229772.

It is an arithmetic number, because the mean of its divisors is an integer number (21376357968).

Almost surely, 2^253404887937 is an apocalyptic number.

It is an amenable number.

253404887937 is a deficient number, since it is larger than the sum of its proper divisors (88616839551).

253404887937 is a wasteful number, since it uses less digits than its factorization.

253404887937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231580.

The product of its (nonzero) digits is 40642560, while the sum is 60.

The spelling of 253404887937 in words is "two hundred fifty-three billion, four hundred four million, eight hundred eighty-seven thousand, nine hundred thirty-seven".