12855748092 has 72 divisors (see below), whose sum is σ = 34911204048. Its totient is φ = 3666516480.

The previous prime is 12855748091. The next prime is 12855748093. The reversal of 12855748092 is 29084755821.

It is an interprime number because it is at equal distance from previous prime (12855748091) and next prime (12855748093).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12855748091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235723 + ... + 285090.

It is an arithmetic number, because the mean of its divisors is an integer number (484877834).

Almost surely, 2^12855748092 is an apocalyptic number.

12855748092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12855748092 is an abundant number, since it is smaller than the sum of its proper divisors (22055455956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12855748092 is a wasteful number, since it uses less digits than its factorization.

12855748092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520859 (or 520846 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 12855748092 in words is "twelve billion, eight hundred fifty-five million, seven hundred forty-eight thousand, ninety-two".