253494790989824 has 96 divisors (see below), whose sum is σ = 513307765152000. Its totient is φ = 125136674537472.

The previous prime is 253494790989779. The next prime is 253494790989833. The reversal of 253494790989824 is 428989097494352.

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, 6322649522 + ... + 6322689614.

It is an arithmetic number, because the mean of its divisors is an integer number (5346955887000).

Almost surely, 2^{253494790989824} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253494790989824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256653882576000).

253494790989824 is an abundant number, since it is smaller than the sum of its proper divisors (259812974162176).

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

253494790989824 is an equidigital number, since it uses as much as digits as its factorization.

253494790989824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79273 (or 79253 counting only the distinct ones).

The product of its (nonzero) digits is 11287019520, while the sum is 83.

The spelling of 253494790989824 in words is "two hundred fifty-three trillion, four hundred ninety-four billion, seven hundred ninety million, nine hundred eighty-nine thousand, eight hundred twenty-four".