15880405542323 has 12 divisors (see below), whose sum is σ = 19445394542760. Its totient is φ = 12895366905792.

The previous prime is 15880405542319. The next prime is 15880405542367. The reversal of 15880405542323 is 32324550408851.

It is a happy number.

It is not a de Polignac number, because 15880405542323 - 2² = 15880405542319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15880405542923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8528680886 + ... + 8528682747.

It is an arithmetic number, because the mean of its divisors is an integer number (1620449545230).

Almost surely, 2^{15880405542323} is an apocalyptic number.

15880405542323 is a deficient number, since it is larger than the sum of its proper divisors (3564989000437).

15880405542323 is a wasteful number, since it uses less digits than its factorization.

15880405542323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17057363666 (or 17057363659 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 50.

The spelling of 15880405542323 in words is "fifteen trillion, eight hundred eighty billion, four hundred five million, five hundred forty-two thousand, three hundred twenty-three".