1263125640252 has 24 divisors (see below), whose sum is σ = 3368335040896. Its totient is φ = 360893040048.

The previous prime is 1263125640149. The next prime is 1263125640331. The reversal of 1263125640252 is 2520465213621.

It is a self number, because there is not a number n which added to its sum of digits gives 1263125640252.

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, 7518604918 + ... + 7518605085.

Almost surely, 2^{1263125640252} is an apocalyptic number.

1263125640252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1263125640252 is an abundant number, since it is smaller than the sum of its proper divisors (2105209400644).

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

1263125640252 is a wasteful number, since it uses less digits than its factorization.

1263125640252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15037210017 (or 15037210015 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 1263125640252 in words is "one trillion, two hundred sixty-three billion, one hundred twenty-five million, six hundred forty thousand, two hundred fifty-two".