13900780322 has 90 divisors (see below), whose sum is σ = 25313629635. Its totient is φ = 5722448160.

The previous prime is 13900780249. The next prime is 13900780349. The reversal of 13900780322 is 22308700931.

It can be written as a sum of positive squares in 5 ways, for example, as 4740184801 + 9160595521 = 68849^2 + 95711^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=83369.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 262278848 + ... + 262278900.

Almost surely, 2^13900780322 is an apocalyptic number.

13900780322 is a deficient number, since it is larger than the sum of its proper divisors (11412849313).

13900780322 is an frugal number, since it uses more digits than its factorization.

13900780322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 13900780322 in words is "thirteen billion, nine hundred million, seven hundred eighty thousand, three hundred twenty-two".