12885851715 has 64 divisors (see below), whose sum is σ = 22970621952. Its totient is φ = 6115824000.

The previous prime is 12885851711. The next prime is 12885851717. The reversal of 12885851715 is 51715858821.

It is not a de Polignac number, because 12885851715 - 2² = 12885851711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12885851711) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1798390 + ... + 1805540.

It is an arithmetic number, because the mean of its divisors is an integer number (358915968).

Almost surely, 2^12885851715 is an apocalyptic number.

12885851715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12885851715 is a deficient number, since it is larger than the sum of its proper divisors (10084770237).

12885851715 is a wasteful number, since it uses less digits than its factorization.

12885851715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7400.

The product of its digits is 896000, while the sum is 51.

The spelling of 12885851715 in words is "twelve billion, eight hundred eighty-five million, eight hundred fifty-one thousand, seven hundred fifteen".