15309463968 has 120 divisors (see below), whose sum is σ = 47673357732. Its totient is φ = 4802955264.

The previous prime is 15309463943. The next prime is 15309463973. The reversal of 15309463968 is 86936490351.

15309463968 is a `hidden beast` number, since 1 + 530 + 9 + 46 + 3 + 9 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15043513104 + 265950864 = 122652^2 + 16308^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 129655 + ... + 217782.

Almost surely, 2^15309463968 is an apocalyptic number.

15309463968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15309463968 is an abundant number, since it is smaller than the sum of its proper divisors (32363893764).

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

15309463968 is a wasteful number, since it uses less digits than its factorization.

15309463968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347476 (or 347459 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 15309463968 in words is "fifteen billion, three hundred nine million, four hundred sixty-three thousand, nine hundred sixty-eight".