15327770868 has 36 divisors (see below), whose sum is σ = 38749052160. Its totient is φ = 5108748816.

The previous prime is 15327770863. The next prime is 15327770873. The reversal of 15327770868 is 86807772351.

It is an interprime number because it is at equal distance from previous prime (15327770863) and next prime (15327770873).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15327770863) 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, 578413 + ... + 604331.

It is an arithmetic number, because the mean of its divisors is an integer number (1076362560).

Almost surely, 2^15327770868 is an apocalyptic number.

15327770868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15327770868 is an abundant number, since it is smaller than the sum of its proper divisors (23421281292).

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

15327770868 is a wasteful number, since it uses less digits than its factorization.

15327770868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42356 (or 42351 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 54.

The spelling of 15327770868 in words is "fifteen billion, three hundred twenty-seven million, seven hundred seventy thousand, eight hundred sixty-eight".