12520071775 has 12 divisors (see below), whose sum is σ = 15532166592. Its totient is φ = 10011362240.

The previous prime is 12520071749. The next prime is 12520071797. The reversal of 12520071775 is 57717002521.

It is not a de Polignac number, because 12520071775 - 2²⁹ = 11983200863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62479 + ... + 170128.

It is an arithmetic number, because the mean of its divisors is an integer number (1294347216).

Almost surely, 2^12520071775 is an apocalyptic number.

12520071775 is a deficient number, since it is larger than the sum of its proper divisors (3012094817).

12520071775 is a wasteful number, since it uses less digits than its factorization.

12520071775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234770 (or 234765 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 37.

The spelling of 12520071775 in words is "twelve billion, five hundred twenty million, seventy-one thousand, seven hundred seventy-five".