18387541740 has 24 divisors (see below), whose sum is σ = 51485117040. Its totient is φ = 4903344448.

The previous prime is 18387541729. The next prime is 18387541801. The reversal of 18387541740 is 4714578381.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18387541740.

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, 153229455 + ... + 153229574.

It is an arithmetic number, because the mean of its divisors is an integer number (2145213210).

Almost surely, 2^18387541740 is an apocalyptic number.

18387541740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18387541740 is an abundant number, since it is smaller than the sum of its proper divisors (33097575300).

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

18387541740 is a wasteful number, since it uses less digits than its factorization.

18387541740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306459041 (or 306459039 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 18387541740 in words is "eighteen billion, three hundred eighty-seven million, five hundred forty-one thousand, seven hundred forty".