7900918211 has 2 divisors, whose sum is σ = 7900918212. Its totient is φ = 7900918210.

The previous prime is 7900918187. The next prime is 7900918241. The reversal of 7900918211 is 1128190097.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7900918211 is a prime.

It is a super-2 number, since 2×7900918211² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (7900918241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3950459105 + 3950459106.

It is an arithmetic number, because the mean of its divisors is an integer number (3950459106).

Almost surely, 2^7900918211 is an apocalyptic number.

7900918211 is a deficient number, since it is larger than the sum of its proper divisors (1).

7900918211 is an equidigital number, since it uses as much as digits as its factorization.

7900918211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 38.

The square root of 7900918211 is about 88887.1093635067. The cubic root of 7900918211 is about 1991.7088602473.

The spelling of 7900918211 in words is "seven billion, nine hundred million, nine hundred eighteen thousand, two hundred eleven".