12811500075 has 24 divisors (see below), whose sum is σ = 23107288896. Its totient is φ = 6211636000.

The previous prime is 12811500061. The next prime is 12811500103. The reversal of 12811500075 is 57000511821.

It is not a de Polignac number, because 12811500075 - 2⁴ = 12811500059 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7763721 + ... + 7765370.

It is an arithmetic number, because the mean of its divisors is an integer number (962803704).

Almost surely, 2^12811500075 is an apocalyptic number.

12811500075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12811500075 is a deficient number, since it is larger than the sum of its proper divisors (10295788821).

12811500075 is a wasteful number, since it uses less digits than its factorization.

12811500075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15529115 (or 15529110 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 30.

The spelling of 12811500075 in words is "twelve billion, eight hundred eleven million, five hundred thousand, seventy-five".