12500464895 has 12 divisors (see below), whose sum is σ = 15791437560. Its totient is φ = 9473210640.

The previous prime is 12500464841. The next prime is 12500464897. The reversal of 12500464895 is 59846400521.

It is not a de Polignac number, because 12500464895 - 2¹⁸ = 12500202751 is a prime.

It is a super-2 number, since 2×12500464895² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500464897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1084010 + ... + 1095480.

It is an arithmetic number, because the mean of its divisors is an integer number (1315953130).

Almost surely, 2^12500464895 is an apocalyptic number.

12500464895 is a deficient number, since it is larger than the sum of its proper divisors (3290972665).

12500464895 is an frugal number, since it uses more digits than its factorization.

12500464895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22966 (or 11495 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 12500464895 in words is "twelve billion, five hundred million, four hundred sixty-four thousand, eight hundred ninety-five".