1252761764144 has 80 divisors (see below), whose sum is σ = 2659383788544. Its totient is φ = 566969241600.

The previous prime is 1252761764099. The next prime is 1252761764171. The reversal of 1252761764144 is 4414671672521.

It is a junction number, because it is equal to n+sod(n) for n = 1252761764092 and 1252761764101.

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, 38139152 + ... + 38171984.

Almost surely, 2^{1252761764144} is an apocalyptic number.

It is an amenable number.

1252761764144 is an abundant number, since it is smaller than the sum of its proper divisors (1406622024400).

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

1252761764144 is a wasteful number, since it uses less digits than its factorization.

1252761764144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33786 (or 33780 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 50.

The spelling of 1252761764144 in words is "one trillion, two hundred fifty-two billion, seven hundred sixty-one million, seven hundred sixty-four thousand, one hundred forty-four".