251430976482 has 96 divisors (see below), whose sum is σ = 589941792000. Its totient is φ = 71227602432.

The previous prime is 251430976441. The next prime is 251430976543. The reversal of 251430976482 is 284679034152.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25972119 + ... + 25981797.

It is an arithmetic number, because the mean of its divisors is an integer number (6145227000).

It is a 1-persistent number, because it is pandigital, but 2⋅251430976482 = 502861952964 is not.

Almost surely, 2^251430976482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 251430976482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294970896000).

251430976482 is an abundant number, since it is smaller than the sum of its proper divisors (338510815518).

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

251430976482 is a wasteful number, since it uses less digits than its factorization.

251430976482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10440 (or 10433 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 251430976482 in words is "two hundred fifty-one billion, four hundred thirty million, nine hundred seventy-six thousand, four hundred eighty-two".