1250642723664 has 80 divisors (see below), whose sum is σ = 3243560345280. Its totient is φ = 415238599680.

The previous prime is 1250642723621. The next prime is 1250642723683. The reversal of 1250642723664 is 4663272460521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82125619 + ... + 82140845.

It is an arithmetic number, because the mean of its divisors is an integer number (40544504316).

Almost surely, 2^{1250642723664} is an apocalyptic number.

It is an amenable number.

1250642723664 is an abundant number, since it is smaller than the sum of its proper divisors (1992917621616).

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

1250642723664 is a wasteful number, since it uses less digits than its factorization.

1250642723664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21868 (or 21862 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 1250642723664 in words is "one trillion, two hundred fifty billion, six hundred forty-two million, seven hundred twenty-three thousand, six hundred sixty-four".