7490442961 has 2 divisors, whose sum is σ = 7490442962. Its totient is φ = 7490442960.

The previous prime is 7490442943. The next prime is 7490443001. The reversal of 7490442961 is 1692440947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3974545936 + 3515897025 = 63044^2 + 59295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7490442961 is a prime.

It is a super-2 number, since 2×7490442961² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7490442931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3745221480 + 3745221481.

It is an arithmetic number, because the mean of its divisors is an integer number (3745221481).

Almost surely, 2^7490442961 is an apocalyptic number.

It is an amenable number.

7490442961 is a deficient number, since it is larger than the sum of its proper divisors (1).

7490442961 is an equidigital number, since it uses as much as digits as its factorization.

7490442961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 7490442961 is about 86547.3451990296. The cubic root of 7490442961 is about 1956.6020328936.

The spelling of 7490442961 in words is "seven billion, four hundred ninety million, four hundred forty-two thousand, nine hundred sixty-one".