7972618247999 has 4 divisors (see below), whose sum is σ = 7980984060336. Its totient is φ = 7964252435664.

The previous prime is 7972618247987. The next prime is 7972618248013. The reversal of 7972618247999 is 9997428162797.

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

It is a cyclic number.

It is not a de Polignac number, because 7972618247999 - 2²⁴ = 7972601470783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7972618277999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4182904739 + ... + 4182906644.

It is an arithmetic number, because the mean of its divisors is an integer number (1995246015084).

Almost surely, 2^{7972618247999} is an apocalyptic number.

7972618247999 is a deficient number, since it is larger than the sum of its proper divisors (8365812337).

7972618247999 is an equidigital number, since it uses as much as digits as its factorization.

7972618247999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8365812336.

The product of its digits is 1728324864, while the sum is 80.

The spelling of 7972618247999 in words is "seven trillion, nine hundred seventy-two billion, six hundred eighteen million, two hundred forty-seven thousand, nine hundred ninety-nine".