1252761199964 has 24 divisors (see below), whose sum is σ = 2321705026368. Its totient is φ = 589429992960.

The previous prime is 1252761199927. The next prime is 1252761199993. The reversal of 1252761199964 is 4699911672521.

It is a junction number, because it is equal to n+sod(n) for n = 1252761199897 and 1252761199906.

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, 1249364 + ... + 2016539.

It is an arithmetic number, because the mean of its divisors is an integer number (96737709432).

Almost surely, 2^{1252761199964} is an apocalyptic number.

It is an amenable number.

1252761199964 is a deficient number, since it is larger than the sum of its proper divisors (1068943826404).

1252761199964 is a wasteful number, since it uses less digits than its factorization.

1252761199964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271565 (or 3271563 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 62.

The spelling of 1252761199964 in words is "one trillion, two hundred fifty-two billion, seven hundred sixty-one million, one hundred ninety-nine thousand, nine hundred sixty-four".