253660547868 has 48 divisors (see below), whose sum is σ = 728461063680. Its totient is φ = 66899484864.

The previous prime is 253660547867. The next prime is 253660547893. The reversal of 253660547868 is 868745066352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253660547867) 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, 116143848 + ... + 116146031.

It is an arithmetic number, because the mean of its divisors is an integer number (15176272160).

Almost surely, 2^253660547868 is an apocalyptic number.

253660547868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

253660547868 is an abundant number, since it is smaller than the sum of its proper divisors (474800515812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253660547868 is a wasteful number, since it uses less digits than its factorization.

253660547868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232289906 (or 232289904 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 60.

The spelling of 253660547868 in words is "two hundred fifty-three billion, six hundred sixty million, five hundred forty-seven thousand, eight hundred sixty-eight".