15880056139 has 2 divisors, whose sum is σ = 15880056140. Its totient is φ = 15880056138.

The previous prime is 15880056119. The next prime is 15880056169. The reversal of 15880056139 is 93165008851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15880056139 - 2⁵ = 15880056107 is a prime.

It is not a weakly prime, because it can be changed into another prime (15880056119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7940028069 + 7940028070.

It is an arithmetic number, because the mean of its divisors is an integer number (7940028070).

Almost surely, 2^15880056139 is an apocalyptic number.

15880056139 is a deficient number, since it is larger than the sum of its proper divisors (1).

15880056139 is an equidigital number, since it uses as much as digits as its factorization.

15880056139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 15880056139 in words is "fifteen billion, eight hundred eighty million, fifty-six thousand, one hundred thirty-nine".