251324640004046 has 16 divisors (see below), whose sum is σ = 430847962958976. Its totient is φ = 107709129263736.

The previous prime is 251324640003961. The next prime is 251324640004079. The reversal of 251324640004046 is 640400046423152.

It is a junction number, because it is equal to n+sod(n) for n = 251324640003994 and 251324640004012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118136216 + ... + 120244811.

It is an arithmetic number, because the mean of its divisors is an integer number (26927997684936).

Almost surely, 2^{251324640004046} is an apocalyptic number.

251324640004046 is a deficient number, since it is larger than the sum of its proper divisors (179523322954930).

251324640004046 is a wasteful number, since it uses less digits than its factorization.

251324640004046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238456343.

The product of its (nonzero) digits is 552960, while the sum is 41.

Adding to 251324640004046 its reverse (640400046423152), we get a palindrome (891724686427198).

The spelling of 251324640004046 in words is "two hundred fifty-one trillion, three hundred twenty-four billion, six hundred forty million, four thousand, forty-six".