203918840468 has 24 divisors (see below), whose sum is σ = 410090937984. Its totient is φ = 86910948000.

The previous prime is 203918840459. The next prime is 203918840473. The reversal of 203918840468 is 864048819302.

It is a congruent number.

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, 20113208 + ... + 20123343.

It is an arithmetic number, because the mean of its divisors is an integer number (17087122416).

Almost surely, 2^203918840468 is an apocalyptic number.

203918840468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

203918840468 is an abundant number, since it is smaller than the sum of its proper divisors (206172097516).

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

203918840468 is a wasteful number, since it uses less digits than its factorization.

203918840468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40236743 (or 40236741 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 203918840468 in words is "two hundred three billion, nine hundred eighteen million, eight hundred forty thousand, four hundred sixty-eight".