18766199948 has 24 divisors (see below), whose sum is σ = 33463990560. Its totient is φ = 9206732160.

The previous prime is 18766199911. The next prime is 18766199953. The reversal of 18766199948 is 84999166781.

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, 164033 + ... + 253848.

It is an arithmetic number, because the mean of its divisors is an integer number (1394332940).

Almost surely, 2^18766199948 is an apocalyptic number.

It is an amenable number.

18766199948 is a deficient number, since it is larger than the sum of its proper divisors (14697790612).

18766199948 is a wasteful number, since it uses less digits than its factorization.

18766199948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418097 (or 418095 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 68.

The spelling of 18766199948 in words is "eighteen billion, seven hundred sixty-six million, one hundred ninety-nine thousand, nine hundred forty-eight".