15782332513 has 2 divisors, whose sum is σ = 15782332514. Its totient is φ = 15782332512.

The previous prime is 15782332471. The next prime is 15782332549. The reversal of 15782332513 is 31523328751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15433838289 + 348494224 = 124233^2 + 18668^2 .

It is a cyclic number.

It is not a de Polignac number, because 15782332513 - 2⁹ = 15782332001 is a prime.

It is not a weakly prime, because it can be changed into another prime (15782332583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7891166256 + 7891166257.

It is an arithmetic number, because the mean of its divisors is an integer number (7891166257).

Almost surely, 2^15782332513 is an apocalyptic number.

It is an amenable number.

15782332513 is a deficient number, since it is larger than the sum of its proper divisors (1).

15782332513 is an equidigital number, since it uses as much as digits as its factorization.

15782332513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The spelling of 15782332513 in words is "fifteen billion, seven hundred eighty-two million, three hundred thirty-two thousand, five hundred thirteen".