15645127679 has 8 divisors (see below), whose sum is σ = 15991190208. Its totient is φ = 15299614720.

The previous prime is 15645127651. The next prime is 15645127739. The reversal of 15645127679 is 97672154651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15645127679 - 2¹⁶ = 15645062143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15645127679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15645127279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79562 + ... + 193959.

It is an arithmetic number, because the mean of its divisors is an integer number (1998898776).

Almost surely, 2^15645127679 is an apocalyptic number.

15645127679 is a deficient number, since it is larger than the sum of its proper divisors (346062529).

15645127679 is a wasteful number, since it uses less digits than its factorization.

15645127679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274785.

The product of its digits is 3175200, while the sum is 53.

The spelling of 15645127679 in words is "fifteen billion, six hundred forty-five million, one hundred twenty-seven thousand, six hundred seventy-nine".