7956842090 has 16 divisors (see below), whose sum is σ = 14331566088. Its totient is φ = 3180681216.

The previous prime is 7956842063. The next prime is 7956842093. The reversal of 7956842090 is 902486597.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5711882929 + 2244959161 = 75577^2 + 47381^2 .

It is a super-2 number, since 2×7956842090² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7956842093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240647 + ... + 271706.

Almost surely, 2^7956842090 is an apocalyptic number.

7956842090 is a deficient number, since it is larger than the sum of its proper divisors (6374723998).

7956842090 is a wasteful number, since it uses less digits than its factorization.

7956842090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513913.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 7956842090 is about 89201.1327842870. The cubic root of 7956842090 is about 1996.3970206676.

The spelling of 7956842090 in words is "seven billion, nine hundred fifty-six million, eight hundred forty-two thousand, ninety".