7818960653 has 16 divisors (see below), whose sum is σ = 9349545216. Its totient is φ = 6393340800.

The previous prime is 7818960641. The next prime is 7818960661. The reversal of 7818960653 is 3560698187.

It is a happy number.

It is not a de Polignac number, because 7818960653 - 2¹⁴ = 7818944269 is a prime.

It is a super-2 number, since 2×7818960653² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7818960595 and 7818960604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7818960673) 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, 5048 + ... + 125153.

It is an arithmetic number, because the mean of its divisors is an integer number (584346576).

Almost surely, 2^7818960653 is an apocalyptic number.

It is an amenable number.

7818960653 is a deficient number, since it is larger than the sum of its proper divisors (1530584563).

7818960653 is a wasteful number, since it uses less digits than its factorization.

7818960653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130604.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 7818960653 is about 88424.8870680647. The cubic root of 7818960653 is about 1984.7981321150.

The spelling of 7818960653 in words is "seven billion, eight hundred eighteen million, nine hundred sixty thousand, six hundred fifty-three".