13709114505640 has 32 divisors (see below), whose sum is σ = 30847215604680. Its totient is φ = 5483342163712.

The previous prime is 13709114505607. The next prime is 13709114505649. The reversal of 13709114505640 is 4650541190731.

It can be written as a sum of positive squares in 4 ways, for example, as 11128535714916 + 2580578790724 = 3335946^2 + 1606418^2 .

It is not an unprimeable number, because it can be changed into a prime (13709114505649) 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, 8756587 + ... + 10202746.

Almost surely, 2^{13709114505640} is an apocalyptic number.

13709114505640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13709114505640 is an abundant number, since it is smaller than the sum of its proper divisors (17138101099040).

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

13709114505640 is a wasteful number, since it uses less digits than its factorization.

13709114505640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18977421 (or 18977417 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 13709114505640 in words is "thirteen trillion, seven hundred nine billion, one hundred fourteen million, five hundred five thousand, six hundred forty".