1349413989209 has 36 divisors (see below), whose sum is σ = 1649521497708. Its totient is φ = 1101770017920.

The previous prime is 1349413989199. The next prime is 1349413989221. The reversal of 1349413989209 is 9029893149431.

It can be written as a sum of positive squares in 6 ways, for example, as 24951361600 + 1324462627609 = 157960^2 + 1150853^2 .

It is not a de Polignac number, because 1349413989209 - 2³² = 1345119021913 is a prime.

It is a super-2 number, since 2×1349413989209² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1349413989239) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 135134 + ... + 1648359.

It is an arithmetic number, because the mean of its divisors is an integer number (45820041603).

Almost surely, 2^{1349413989209} is an apocalyptic number.

It is an amenable number.

1349413989209 is a deficient number, since it is larger than the sum of its proper divisors (300107508499).

1349413989209 is a wasteful number, since it uses less digits than its factorization.

1349413989209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783578 (or 1783554 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 62.

The spelling of 1349413989209 in words is "one trillion, three hundred forty-nine billion, four hundred thirteen million, nine hundred eighty-nine thousand, two hundred nine".