15787130654 has 4 divisors (see below), whose sum is σ = 23680695984. Its totient is φ = 7893565326.

The previous prime is 15787130629. The next prime is 15787130683. The reversal of 15787130654 is 45603178751.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 15787130599 and 15787130608.

It is a congruent number.

It is an unprimeable number.

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, 3946782662 + ... + 3946782665.

It is an arithmetic number, because the mean of its divisors is an integer number (5920173996).

Almost surely, 2^15787130654 is an apocalyptic number.

15787130654 is a deficient number, since it is larger than the sum of its proper divisors (7893565330).

15787130654 is an equidigital number, since it uses as much as digits as its factorization.

15787130654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7893565329.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 15787130654 in words is "fifteen billion, seven hundred eighty-seven million, one hundred thirty thousand, six hundred fifty-four".