12501402765 has 16 divisors (see below), whose sum is σ = 20200288896. Its totient is φ = 6601400000.

The previous prime is 12501402763. The next prime is 12501402833. The reversal of 12501402765 is 56720410521.

It is not a de Polignac number, because 12501402765 - 2¹ = 12501402763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12501402763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4124361 + ... + 4127390.

It is an arithmetic number, because the mean of its divisors is an integer number (1262518056).

Almost surely, 2^12501402765 is an apocalyptic number.

12501402765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12501402765 is a deficient number, since it is larger than the sum of its proper divisors (7698886131).

12501402765 is a wasteful number, since it uses less digits than its factorization.

12501402765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8251860.

The product of its (nonzero) digits is 16800, while the sum is 33.

The spelling of 12501402765 in words is "twelve billion, five hundred one million, four hundred two thousand, seven hundred sixty-five".