15880403617087 has 2 divisors, whose sum is σ = 15880403617088. Its totient is φ = 15880403617086.

The previous prime is 15880403617073. The next prime is 15880403617139. The reversal of 15880403617087 is 78071630408851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15880403617087 - 2²⁷ = 15880269399359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15880403617387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7940201808543 + 7940201808544.

It is an arithmetic number, because the mean of its divisors is an integer number (7940201808544).

Almost surely, 2^{15880403617087} is an apocalyptic number.

15880403617087 is a deficient number, since it is larger than the sum of its proper divisors (1).

15880403617087 is an equidigital number, since it uses as much as digits as its factorization.

15880403617087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9031680, while the sum is 58.

The spelling of 15880403617087 in words is "fifteen trillion, eight hundred eighty billion, four hundred three million, six hundred seventeen thousand, eighty-seven".