253717383408 has 20 divisors (see below), whose sum is σ = 655436573928. Its totient is φ = 84572461120.

The previous prime is 253717383407. The next prime is 253717383449. The reversal of 253717383408 is 804383717352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253717383407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2642889363 + ... + 2642889458.

Almost surely, 2^253717383408 is an apocalyptic number.

It is an amenable number.

253717383408 is an abundant number, since it is smaller than the sum of its proper divisors (401719190520).

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

253717383408 is a wasteful number, since it uses less digits than its factorization.

253717383408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285778832 (or 5285778826 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 253717383408 in words is "two hundred fifty-three billion, seven hundred seventeen million, three hundred eighty-three thousand, four hundred eight".