18413177948 has 24 divisors (see below), whose sum is σ = 35298311664. Its totient is φ = 8334892800.

The previous prime is 18413177947. The next prime is 18413177953. The reversal of 18413177948 is 84977131481.

It is a self number, because there is not a number n which added to its sum of digits gives 18413177948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18413177947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857615 + ... + 878822.

It is an arithmetic number, because the mean of its divisors is an integer number (1470762986).

Almost surely, 2^18413177948 is an apocalyptic number.

It is an amenable number.

18413177948 is a deficient number, since it is larger than the sum of its proper divisors (16885133716).

18413177948 is a wasteful number, since it uses less digits than its factorization.

18413177948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736693 (or 1736691 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 53.

The spelling of 18413177948 in words is "eighteen billion, four hundred thirteen million, one hundred seventy-seven thousand, nine hundred forty-eight".