7951801113 has 12 divisors (see below), whose sum is σ = 11520022228. Its totient is φ = 5285468160.

The previous prime is 7951801057. The next prime is 7951801127. The reversal of 7951801113 is 3111081597.

It can be written as a sum of positive squares in 2 ways, for example, as 4161798144 + 3790002969 = 64512^2 + 61563^2 .

It is not a de Polignac number, because 7951801113 - 2⁶ = 7951801049 is a prime.

It is a super-2 number, since 2×7951801113² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7951801513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1307848 + ... + 1313913.

Almost surely, 2^7951801113 is an apocalyptic number.

It is an amenable number.

7951801113 is a deficient number, since it is larger than the sum of its proper divisors (3568221115).

7951801113 is a wasteful number, since it uses less digits than its factorization.

7951801113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622104 (or 2622101 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 36.

The square root of 7951801113 is about 89172.8720688080. The cubic root of 7951801113 is about 1995.9753325419.

The spelling of 7951801113 in words is "seven billion, nine hundred fifty-one million, eight hundred one thousand, one hundred thirteen".