251341256004 has 12 divisors (see below), whose sum is σ = 586462930704. Its totient is φ = 83780418664.

The previous prime is 251341255931. The next prime is 251341256029. The reversal of 251341256004 is 400652143152.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 10472552322 + ... + 10472552345.

It is an arithmetic number, because the mean of its divisors is an integer number (48871910892).

Almost surely, 2^251341256004 is an apocalyptic number.

It is an amenable number.

251341256004 is an abundant number, since it is smaller than the sum of its proper divisors (335121674700).

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

251341256004 is a wasteful number, since it uses less digits than its factorization.

251341256004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20945104674 (or 20945104672 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 251341256004 its reverse (400652143152), we get a palindrome (651993399156).

The spelling of 251341256004 in words is "two hundred fifty-one billion, three hundred forty-one million, two hundred fifty-six thousand, four".