18613077756 has 48 divisors (see below), whose sum is σ = 53452944384. Its totient is φ = 4908943296.

The previous prime is 18613077751. The next prime is 18613077761. The reversal of 18613077756 is 65777031681.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18613077751) and next prime (18613077761).

It is a junction number, because it is equal to n+sod(n) for n = 18613077699 and 18613077708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18613077751) 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, 8521380 + ... + 8523563.

It is an arithmetic number, because the mean of its divisors is an integer number (1113603008).

Almost surely, 2^18613077756 is an apocalyptic number.

It is an amenable number.

18613077756 is an abundant number, since it is smaller than the sum of its proper divisors (34839866628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18613077756 is a wasteful number, since it uses less digits than its factorization.

18613077756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17044970 (or 17044968 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 51.

The spelling of 18613077756 in words is "eighteen billion, six hundred thirteen million, seventy-seven thousand, seven hundred fifty-six".