7951039969 has 2 divisors, whose sum is σ = 7951039970. Its totient is φ = 7951039968.

The previous prime is 7951039919. The next prime is 7951039979. The reversal of 7951039969 is 9699301597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5343610000 + 2607429969 = 73100^2 + 51063^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7951039969 is a prime.

It is a super-2 number, since 2×7951039969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7951039909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3975519984 + 3975519985.

It is an arithmetic number, because the mean of its divisors is an integer number (3975519985).

Almost surely, 2^7951039969 is an apocalyptic number.

It is an amenable number.

7951039969 is a deficient number, since it is larger than the sum of its proper divisors (1).

7951039969 is an equidigital number, since it uses as much as digits as its factorization.

7951039969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4133430, while the sum is 58.

The square root of 7951039969 is about 89168.6041664890. The cubic root of 7951039969 is about 1995.9116457912.

The spelling of 7951039969 in words is "seven billion, nine hundred fifty-one million, thirty-nine thousand, nine hundred sixty-nine".