7780242113 has 16 divisors (see below), whose sum is σ = 9536296320. Its totient is φ = 6198581376.

The previous prime is 7780242089. The next prime is 7780242157. The reversal of 7780242113 is 3112420877.

It is a cyclic number.

It is not a de Polignac number, because 7780242113 - 2²⁶ = 7713133249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7780242163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544820 + ... + 558917.

It is an arithmetic number, because the mean of its divisors is an integer number (596018520).

Almost surely, 2^7780242113 is an apocalyptic number.

It is an amenable number.

7780242113 is a deficient number, since it is larger than the sum of its proper divisors (1756054207).

7780242113 is a wasteful number, since it uses less digits than its factorization.

7780242113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103816.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 7780242113 is about 88205.6807297580. The cubic root of 7780242113 is about 1981.5165500088.

The spelling of 7780242113 in words is "seven billion, seven hundred eighty million, two hundred forty-two thousand, one hundred thirteen".