251076947960 has 16 divisors (see below), whose sum is σ = 564923133000. Its totient is φ = 100430779168.

The previous prime is 251076947951. The next prime is 251076947993. The reversal of 251076947960 is 69749670152.

It is a junction number, because it is equal to n+sod(n) for n = 251076947896 and 251076947905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3138461810 + ... + 3138461889.

Almost surely, 2^251076947960 is an apocalyptic number.

251076947960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

251076947960 is an abundant number, since it is smaller than the sum of its proper divisors (313846185040).

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

251076947960 is a wasteful number, since it uses less digits than its factorization.

251076947960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6276923710 (or 6276923706 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 56.

The spelling of 251076947960 in words is "two hundred fifty-one billion, seventy-six million, nine hundred forty-seven thousand, nine hundred sixty".