18197607846 has 48 divisors (see below), whose sum is σ = 41903587008. Its totient is φ = 5224186800.

The previous prime is 18197607839. The next prime is 18197607853. The reversal of 18197607846 is 64870679181.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18197607839) and next prime (18197607853).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358060 + ... + 405711.

It is an arithmetic number, because the mean of its divisors is an integer number (872991396).

Almost surely, 2^18197607846 is an apocalyptic number.

18197607846 is an abundant number, since it is smaller than the sum of its proper divisors (23705979162).

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

18197607846 is a wasteful number, since it uses less digits than its factorization.

18197607846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763825 (or 763806 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 18197607846 in words is "eighteen billion, one hundred ninety-seven million, six hundred seven thousand, eight hundred forty-six".