18969280589040 has 160 divisors (see below), whose sum is σ = 60835129427520. Its totient is φ = 4883835199488.

The previous prime is 18969280589003. The next prime is 18969280589047. The reversal of 18969280589040 is 4098508296981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18969280589047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223881724 + ... + 223966436.

It is an arithmetic number, because the mean of its divisors is an integer number (380219558922).

Almost surely, 2^{18969280589040} is an apocalyptic number.

18969280589040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18969280589040 is an abundant number, since it is smaller than the sum of its proper divisors (41865848838480).

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

18969280589040 is a wasteful number, since it uses less digits than its factorization.

18969280589040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116931 (or 116925 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 69.

The spelling of 18969280589040 in words is "eighteen trillion, nine hundred sixty-nine billion, two hundred eighty million, five hundred eighty-nine thousand, forty".