253612017644 has 12 divisors (see below), whose sum is σ = 449900771544. Its totient is φ = 125068940064.

The previous prime is 253612017641. The next prime is 253612017653. The reversal of 253612017644 is 446710216352.

It is not an unprimeable number, because it can be changed into a prime (253612017641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434266862 + ... + 434267445.

It is an arithmetic number, because the mean of its divisors is an integer number (37491730962).

Almost surely, 2^253612017644 is an apocalyptic number.

It is an amenable number.

253612017644 is a deficient number, since it is larger than the sum of its proper divisors (196288753900).

253612017644 is a wasteful number, since it uses less digits than its factorization.

253612017644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868534384 (or 868534382 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 253612017644 in words is "two hundred fifty-three billion, six hundred twelve million, seventeen thousand, six hundred forty-four".