251301367242 has 16 divisors (see below), whose sum is σ = 558447482880. Its totient is φ = 83767122396.

The previous prime is 251301367201. The next prime is 251301367253. The reversal of 251301367242 is 242763103152.

251301367242 is a `hidden beast` number, since 2 + 51 + 3 + 0 + 1 + 367 + 242 = 666.

251301367242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 251301367197 and 251301367206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2326864458 + ... + 2326864565.

It is an arithmetic number, because the mean of its divisors is an integer number (34902967680).

Almost surely, 2^251301367242 is an apocalyptic number.

251301367242 is an abundant number, since it is smaller than the sum of its proper divisors (307146115638).

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

251301367242 is a wasteful number, since it uses less digits than its factorization.

251301367242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4653729034 (or 4653729028 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 251301367242 in words is "two hundred fifty-one billion, three hundred one million, three hundred sixty-seven thousand, two hundred forty-two".