1251402762652 has 12 divisors (see below), whose sum is σ = 2502805525360. Its totient is φ = 536315469696.

The previous prime is 1251402762613. The next prime is 1251402762653. The reversal of 1251402762652 is 2562672041521.

1251402762652 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1251402762599 and 1251402762608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251402762653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22346477877 + ... + 22346477932.

Almost surely, 2^{1251402762652} is an apocalyptic number.

It is an amenable number.

1251402762652 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1251402762652 is a wasteful number, since it uses less digits than its factorization.

1251402762652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44692955820 (or 44692955818 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 1251402762652 in words is "one trillion, two hundred fifty-one billion, four hundred two million, seven hundred sixty-two thousand, six hundred fifty-two".