12500367893 has 4 divisors (see below), whose sum is σ = 13461934668. Its totient is φ = 11538801120.

The previous prime is 12500367889. The next prime is 12500367917. The reversal of 12500367893 is 39876300521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39876300521 = 19 ⋅2098752659.

It can be written as a sum of positive squares in 2 ways, for example, as 7813322449 + 4687045444 = 88393^2 + 68462^2 .

It is a cyclic number.

It is not a de Polignac number, because 12500367893 - 2² = 12500367889 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500367833) 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, 480783368 + ... + 480783393.

It is an arithmetic number, because the mean of its divisors is an integer number (3365483667).

Almost surely, 2^12500367893 is an apocalyptic number.

12500367893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12500367893 is a deficient number, since it is larger than the sum of its proper divisors (961566775).

12500367893 is an equidigital number, since it uses as much as digits as its factorization.

12500367893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961566774.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 12500367893 in words is "twelve billion, five hundred million, three hundred sixty-seven thousand, eight hundred ninety-three".