15804142641 has 24 divisors (see below), whose sum is σ = 26181596480. Its totient is φ = 8999017056.

The previous prime is 15804142619. The next prime is 15804142649. The reversal of 15804142641 is 14624140851.

15804142641 is a `hidden beast` number, since 1 + 5 + 8 + 0 + 4 + 1 + 4 + 2 + 641 = 666.

It is not a de Polignac number, because 15804142641 - 2⁵ = 15804142609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15804142596 and 15804142605.

It is not an unprimeable number, because it can be changed into a prime (15804142649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 425386 + ... + 461043.

Almost surely, 2^15804142641 is an apocalyptic number.

It is an amenable number.

15804142641 is a deficient number, since it is larger than the sum of its proper divisors (10377453839).

15804142641 is a wasteful number, since it uses less digits than its factorization.

15804142641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886725 (or 886722 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The spelling of 15804142641 in words is "fifteen billion, eight hundred four million, one hundred forty-two thousand, six hundred forty-one".