15472511979 has 8 divisors (see below), whose sum is σ = 20630595072. Its totient is φ = 10314718440.

The previous prime is 15472511969. The next prime is 15472512031. The reversal of 15472511979 is 97911527451.

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

It is not a de Polignac number, because 15472511979 - 2⁵ = 15472511947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15472511909) 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, 149202 + ... + 230664.

It is an arithmetic number, because the mean of its divisors is an integer number (2578824384).

Almost surely, 2^15472511979 is an apocalyptic number.

15472511979 is a deficient number, since it is larger than the sum of its proper divisors (5158083093).

15472511979 is an equidigital number, since it uses as much as digits as its factorization.

15472511979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144777.

The product of its digits is 793800, while the sum is 51.

The spelling of 15472511979 in words is "fifteen billion, four hundred seventy-two million, five hundred eleven thousand, nine hundred seventy-nine".