18756675444 has 48 divisors (see below), whose sum is σ = 49181392512. Its totient is φ = 5520358272.

The previous prime is 18756675437. The next prime is 18756675451. The reversal of 18756675444 is 44457665781.

It is an interprime number because it is at equal distance from previous prime (18756675437) and next prime (18756675451).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2610219 + ... + 2617394.

It is an arithmetic number, because the mean of its divisors is an integer number (1024612344).

Almost surely, 2^18756675444 is an apocalyptic number.

It is an amenable number.

18756675444 is an abundant number, since it is smaller than the sum of its proper divisors (30424717068).

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

18756675444 is a wasteful number, since it uses less digits than its factorization.

18756675444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5227656 (or 5227654 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 57.

The spelling of 18756675444 in words is "eighteen billion, seven hundred fifty-six million, six hundred seventy-five thousand, four hundred forty-four".