108905489440 has 96 divisors (see below), whose sum is σ = 292882697856. Its totient is φ = 37880156160.

The previous prime is 108905489411. The next prime is 108905489449. The reversal of 108905489440 is 44984509801.

It is not an unprimeable number, because it can be changed into a prime (108905489449) 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, 1304697 + ... + 1385656.

It is an arithmetic number, because the mean of its divisors is an integer number (3050861436).

Almost surely, 2^108905489440 is an apocalyptic number.

108905489440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108905489440 is an abundant number, since it is smaller than the sum of its proper divisors (183977208416).

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

108905489440 is a wasteful number, since it uses less digits than its factorization.

108905489440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690402 (or 2690394 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 108905489440 in words is "one hundred eight billion, nine hundred five million, four hundred eighty-nine thousand, four hundred forty".