13147372563 has 32 divisors (see below), whose sum is σ = 19881926400. Its totient is φ = 7660987776.

The previous prime is 13147372559. The next prime is 13147372571. The reversal of 13147372563 is 36527374131.

It is a happy number.

It is not a de Polignac number, because 13147372563 - 2² = 13147372559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13147371563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2174781 + ... + 2180817.

It is an arithmetic number, because the mean of its divisors is an integer number (621310200).

Almost surely, 2^13147372563 is an apocalyptic number.

13147372563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13147372563 is a deficient number, since it is larger than the sum of its proper divisors (6734553837).

13147372563 is a wasteful number, since it uses less digits than its factorization.

13147372563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9011.

The product of its digits is 317520, while the sum is 42.

The spelling of 13147372563 in words is "thirteen billion, one hundred forty-seven million, three hundred seventy-two thousand, five hundred sixty-three".