15880104007009 has 4 divisors (see below), whose sum is σ = 17323749825840. Its totient is φ = 14436458188180.

The previous prime is 15880104006961. The next prime is 15880104007133. The reversal of 15880104007009 is 90070040108851.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15880104007009 - 2¹⁹ = 15880103482721 is a prime.

It is a super-2 number, since 2×15880104007009² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15880104005009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721822909399 + ... + 721822909420.

It is an arithmetic number, because the mean of its divisors is an integer number (4330937456460).

Almost surely, 2^{15880104007009} is an apocalyptic number.

It is an amenable number.

15880104007009 is a deficient number, since it is larger than the sum of its proper divisors (1443645818831).

15880104007009 is a wasteful number, since it uses less digits than its factorization.

15880104007009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443645818830.

The product of its (nonzero) digits is 80640, while the sum is 43.

The spelling of 15880104007009 in words is "fifteen trillion, eight hundred eighty billion, one hundred four million, seven thousand, nine".