15972145763 has 8 divisors (see below), whose sum is σ = 18883325280. Its totient is φ = 13218327360.

The previous prime is 15972145759. The next prime is 15972145823. The reversal of 15972145763 is 36754127951.

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

It is not a de Polignac number, because 15972145763 - 2² = 15972145759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15972145733) 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, 39340058 + ... + 39340463.

It is an arithmetic number, because the mean of its divisors is an integer number (2360415660).

Almost surely, 2^15972145763 is an apocalyptic number.

15972145763 is a deficient number, since it is larger than the sum of its proper divisors (2911179517).

15972145763 is an equidigital number, since it uses as much as digits as its factorization.

15972145763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78680557.

The product of its digits is 1587600, while the sum is 50.

The spelling of 15972145763 in words is "fifteen billion, nine hundred seventy-two million, one hundred forty-five thousand, seven hundred sixty-three".