18776136948 has 36 divisors (see below), whose sum is σ = 46539706752. Its totient is φ = 5890551680.

The previous prime is 18776136937. The next prime is 18776136949. The reversal of 18776136948 is 84963167781.

It is a junction number, because it is equal to n+sod(n) for n = 18776136891 and 18776136900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18776136949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2703588 + ... + 2710523.

It is an arithmetic number, because the mean of its divisors is an integer number (1292769632).

Almost surely, 2^18776136948 is an apocalyptic number.

It is an amenable number.

18776136948 is an abundant number, since it is smaller than the sum of its proper divisors (27763569804).

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

18776136948 is a wasteful number, since it uses less digits than its factorization.

18776136948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5414152 (or 5414133 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 60.

The spelling of 18776136948 in words is "eighteen billion, seven hundred seventy-six million, one hundred thirty-six thousand, nine hundred forty-eight".