11872465513 has 2 divisors, whose sum is σ = 11872465514. Its totient is φ = 11872465512.

The previous prime is 11872465483. The next prime is 11872465523. The reversal of 11872465513 is 31556427811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8185182784 + 3687282729 = 90472^2 + 60723^2 .

It is a cyclic number.

It is not a de Polignac number, because 11872465513 - 2⁵ = 11872465481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11872465513.

It is not a weakly prime, because it can be changed into another prime (11872465523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5936232756 + 5936232757.

It is an arithmetic number, because the mean of its divisors is an integer number (5936232757).

Almost surely, 2^11872465513 is an apocalyptic number.

It is an amenable number.

11872465513 is a deficient number, since it is larger than the sum of its proper divisors (1).

11872465513 is an equidigital number, since it uses as much as digits as its factorization.

11872465513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 43.

The spelling of 11872465513 in words is "eleven billion, eight hundred seventy-two million, four hundred sixty-five thousand, five hundred thirteen".