13583813940 has 48 divisors (see below), whose sum is σ = 42260756160. Its totient is φ = 3622350240.

The previous prime is 13583813927. The next prime is 13583813951. The reversal of 13583813940 is 4931838531.

13583813940 is a `hidden beast` number, since 13 + 583 + 8 + 13 + 9 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12577066 + ... + 12578145.

It is an arithmetic number, because the mean of its divisors is an integer number (880432420).

Almost surely, 2^13583813940 is an apocalyptic number.

13583813940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13583813940 is an abundant number, since it is smaller than the sum of its proper divisors (28676942220).

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

13583813940 is a wasteful number, since it uses less digits than its factorization.

13583813940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25155229 (or 25155221 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 13583813940 in words is "thirteen billion, five hundred eighty-three million, eight hundred thirteen thousand, nine hundred forty".