18885740952 has 64 divisors (see below), whose sum is σ = 50859900000. Its totient is φ = 5809434624.

The previous prime is 18885740941. The next prime is 18885740953. The reversal of 18885740952 is 25904758881.

It is a super-2 number, since 2×18885740952² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18885740892 and 18885740901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18885740953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1788424 + ... + 1798952.

Almost surely, 2^18885740952 is an apocalyptic number.

18885740952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18885740952 is an abundant number, since it is smaller than the sum of its proper divisors (31974159048).

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

18885740952 is a wasteful number, since it uses less digits than its factorization.

18885740952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16300 (or 16296 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 57.

The spelling of 18885740952 in words is "eighteen billion, eight hundred eighty-five million, seven hundred forty thousand, nine hundred fifty-two".