2251023260464 has 40 divisors (see below), whose sum is σ = 4766639357520. Its totient is φ = 1021301049600.

The previous prime is 2251023260459. The next prime is 2251023260483. The reversal of 2251023260464 is 4640623201522.

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 7 ways as a sum of consecutive naturals, for example, 11725399 + ... + 11915830.

It is an arithmetic number, because the mean of its divisors is an integer number (119165983938).

Almost surely, 2^{2251023260464} is an apocalyptic number.

It is an amenable number.

2251023260464 is an abundant number, since it is smaller than the sum of its proper divisors (2515616097056).

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

2251023260464 is a wasteful number, since it uses less digits than its factorization.

2251023260464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23641789 (or 23641783 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 2251023260464 its reverse (4640623201522), we get a palindrome (6891646461986).

The spelling of 2251023260464 in words is "two trillion, two hundred fifty-one billion, twenty-three million, two hundred sixty thousand, four hundred sixty-four".