253464253464 has 128 divisors (see below), whose sum is σ = 654482592000. Its totient is φ = 81766080000.

The previous prime is 253464253457. The next prime is 253464253513. The reversal of 253464253464 is 464352464352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25594914 + ... + 25604814.

It is an arithmetic number, because the mean of its divisors is an integer number (5113145250).

Almost surely, 2^253464253464 is an apocalyptic number.

253464253464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253464253464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327241296000).

253464253464 is an abundant number, since it is smaller than the sum of its proper divisors (401018338536).

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

253464253464 is a wasteful number, since it uses less digits than its factorization.

253464253464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10249 (or 10245 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 48.

The spelling of 253464253464 in words is "two hundred fifty-three billion, four hundred sixty-four million, two hundred fifty-three thousand, four hundred sixty-four".