7900360991 has 2 divisors, whose sum is σ = 7900360992. Its totient is φ = 7900360990.

The previous prime is 7900360981. The next prime is 7900360999. The reversal of 7900360991 is 1990630097.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7900360991 - 2⁶ = 7900360927 is a prime.

It is a super-2 number, since 2×7900360991² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7900360999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3950180495 + 3950180496.

It is an arithmetic number, because the mean of its divisors is an integer number (3950180496).

Almost surely, 2^7900360991 is an apocalyptic number.

7900360991 is a deficient number, since it is larger than the sum of its proper divisors (1).

7900360991 is an equidigital number, since it uses as much as digits as its factorization.

7900360991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 7900360991 is about 88883.9748829900. The cubic root of 7900360991 is about 1991.6620367401.

The spelling of 7900360991 in words is "seven billion, nine hundred million, three hundred sixty thousand, nine hundred ninety-one".