18620379706 has 16 divisors (see below), whose sum is σ = 28097360928. Its totient is φ = 9254638800.

The previous prime is 18620379691. The next prime is 18620379751. The reversal of 18620379706 is 60797302681.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18620379706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906061 + ... + 926383.

It is an arithmetic number, because the mean of its divisors is an integer number (1756085058).

Almost surely, 2^18620379706 is an apocalyptic number.

18620379706 is a deficient number, since it is larger than the sum of its proper divisors (9476981222).

18620379706 is a wasteful number, since it uses less digits than its factorization.

18620379706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23037.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 18620379706 in words is "eighteen billion, six hundred twenty million, three hundred seventy-nine thousand, seven hundred six".