7972618247987 has 2 divisors, whose sum is σ = 7972618247988. Its totient is φ = 7972618247986.

The previous prime is 7972618247981. The next prime is 7972618248013. The reversal of 7972618247987 is 7897428162797.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7972618247987 - 2³⁸ = 7697740341043 is a prime.

It is not a weakly prime, because it can be changed into another prime (7972618247981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3986309123993 + 3986309123994.

It is an arithmetic number, because the mean of its divisors is an integer number (3986309123994).

Almost surely, 2^{7972618247987} is an apocalyptic number.

7972618247987 is a deficient number, since it is larger than the sum of its proper divisors (1).

7972618247987 is an equidigital number, since it uses as much as digits as its factorization.

7972618247987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1194891264, while the sum is 77.

The spelling of 7972618247987 in words is "seven trillion, nine hundred seventy-two billion, six hundred eighteen million, two hundred forty-seven thousand, nine hundred eighty-seven".