253140514644 has 24 divisors (see below), whose sum is σ = 592763205888. Its totient is φ = 84079885120.

The previous prime is 253140514621. The next prime is 253140514651. The reversal of 253140514644 is 446415041352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37532292 + ... + 37539035.

It is an arithmetic number, because the mean of its divisors is an integer number (24698466912).

Almost surely, 2^253140514644 is an apocalyptic number.

It is an amenable number.

253140514644 is an abundant number, since it is smaller than the sum of its proper divisors (339622691244).

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

253140514644 is a wasteful number, since it uses less digits than its factorization.

253140514644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75071615 (or 75071613 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 253140514644 its reverse (446415041352), we get a palindrome (699555555996).

The spelling of 253140514644 in words is "two hundred fifty-three billion, one hundred forty million, five hundred fourteen thousand, six hundred forty-four".