253969606408 has 96 divisors (see below), whose sum is σ = 561331330560. Its totient is φ = 107394940800.

The previous prime is 253969606379. The next prime is 253969606417. The reversal of 253969606408 is 804606969352.

It is a super-3 number, since 3×253969606408³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27748633 + ... + 27757783.

It is an arithmetic number, because the mean of its divisors is an integer number (5847201360).

Almost surely, 2^253969606408 is an apocalyptic number.

253969606408 is a gapful number since it is divisible by the number (28) 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 253969606408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280665665280).

253969606408 is an abundant number, since it is smaller than the sum of its proper divisors (307361724152).

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

253969606408 is a wasteful number, since it uses less digits than its factorization.

253969606408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10107 (or 10096 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 58.

The spelling of 253969606408 in words is "two hundred fifty-three billion, nine hundred sixty-nine million, six hundred six thousand, four hundred eight".