13809421790 has 16 divisors (see below), whose sum is σ = 24858390240. Its totient is φ = 5523450720.

The previous prime is 13809421771. The next prime is 13809421799. The reversal of 13809421790 is 9712490831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13809421799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229460 + ... + 283320.

It is an arithmetic number, because the mean of its divisors is an integer number (1553649390).

Almost surely, 2^13809421790 is an apocalyptic number.

13809421790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13809421790 is a deficient number, since it is larger than the sum of its proper divisors (11048968450).

13809421790 is a wasteful number, since it uses less digits than its factorization.

13809421790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79507.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 13809421790 in words is "thirteen billion, eight hundred nine million, four hundred twenty-one thousand, seven hundred ninety".