251462380422 has 64 divisors (see below), whose sum is σ = 555430950144. Its totient is φ = 75258839040.

The previous prime is 251462380417. The next prime is 251462380493. The reversal of 251462380422 is 224083264152.

251462380422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 25506118 + ... + 25515974.

It is an arithmetic number, because the mean of its divisors is an integer number (8678608596).

Almost surely, 2^251462380422 is an apocalyptic number.

251462380422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 251462380422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277715475072).

251462380422 is an abundant number, since it is smaller than the sum of its proper divisors (303968569722).

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

251462380422 is a wasteful number, since it uses less digits than its factorization.

251462380422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14613.

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 251462380422 in words is "two hundred fifty-one billion, four hundred sixty-two million, three hundred eighty thousand, four hundred twenty-two".