12500000138750 has 40 divisors (see below), whose sum is σ = 23779701915816. Its totient is φ = 4925373156000.

The previous prime is 12500000138699. The next prime is 12500000138777. The reversal of 12500000138750 is 5783100000521.

12500000138750 is a modest number, since divided by 138750 gives 12500 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 74543117 + ... + 74710616.

Almost surely, 2^{12500000138750} is an apocalyptic number.

12500000138750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12500000138750 is a deficient number, since it is larger than the sum of its proper divisors (11279701777066).

12500000138750 is an equidigital number, since it uses as much as digits as its factorization.

12500000138750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149253822 (or 149253807 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 12500000138750 in words is "twelve trillion, five hundred billion, one hundred thirty-eight thousand, seven hundred fifty".