7787930113 has 4 divisors (see below), whose sum is σ = 7789531860. Its totient is φ = 7786328368.

The previous prime is 7787930107. The next prime is 7787930123. The reversal of 7787930113 is 3110397877.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3110397877 = 17 ⋅182964581.

It can be written as a sum of positive squares in 2 ways, for example, as 5590851984 + 2197078129 = 74772^2 + 46873^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7787930113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7787930123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793558 + ... + 803311.

It is an arithmetic number, because the mean of its divisors is an integer number (1947382965).

Almost surely, 2^7787930113 is an apocalyptic number.

It is an amenable number.

7787930113 is a deficient number, since it is larger than the sum of its proper divisors (1601747).

7787930113 is a wasteful number, since it uses less digits than its factorization.

7787930113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601746.

The product of its (nonzero) digits is 222264, while the sum is 46.

The square root of 7787930113 is about 88249.2499288238. The cubic root of 7787930113 is about 1982.1690097483.

The spelling of 7787930113 in words is "seven billion, seven hundred eighty-seven million, nine hundred thirty thousand, one hundred thirteen".