12500000138751 has 16 divisors (see below), whose sum is σ = 16790206502400. Its totient is φ = 8271762539040.

The previous prime is 12500000138699. The next prime is 12500000138777. The reversal of 12500000138751 is 15783100000521.

It is not a de Polignac number, because 12500000138751 - 2⁷ = 12500000138623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500000138251) 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, 24615675 + ... + 25118348.

It is an arithmetic number, because the mean of its divisors is an integer number (1049387906400).

Almost surely, 2^{12500000138751} is an apocalyptic number.

12500000138751 is a deficient number, since it is larger than the sum of its proper divisors (4290206363649).

12500000138751 is a wasteful number, since it uses less digits than its factorization.

12500000138751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49734646.

The product of its (nonzero) digits is 8400, while the sum is 33.

The spelling of 12500000138751 in words is "twelve trillion, five hundred billion, one hundred thirty-eight thousand, seven hundred fifty-one".