13980447349 has 8 divisors (see below), whose sum is σ = 15386366592. Its totient is φ = 12597023040.

The previous prime is 13980447337. The next prime is 13980447379. The reversal of 13980447349 is 94374408931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13980447349 - 2⁵ = 13980447317 is a prime.

It is a super-2 number, since 2×13980447349² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13980447296 and 13980447305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13980447379) 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, 5622429 + ... + 5624914.

It is an arithmetic number, because the mean of its divisors is an integer number (1923295824).

Almost surely, 2^13980447349 is an apocalyptic number.

It is an amenable number.

13980447349 is a deficient number, since it is larger than the sum of its proper divisors (1405919243).

13980447349 is a wasteful number, since it uses less digits than its factorization.

13980447349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11247467.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 13980447349 in words is "thirteen billion, nine hundred eighty million, four hundred forty-seven thousand, three hundred forty-nine".