13681370135690 has 32 divisors (see below), whose sum is σ = 26231220175104. Its totient is φ = 5119791335680.

The previous prime is 13681370135687. The next prime is 13681370135701. The reversal of 13681370135690 is 9653107318631.

13681370135690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13681370135690² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240925646 + ... + 240982425.

It is an arithmetic number, because the mean of its divisors is an integer number (819725630472).

Almost surely, 2^{13681370135690} is an apocalyptic number.

13681370135690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13681370135690 is a deficient number, since it is larger than the sum of its proper divisors (12549850039414).

13681370135690 is a wasteful number, since it uses less digits than its factorization.

13681370135690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481908262.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 13681370135690 in words is "thirteen trillion, six hundred eighty-one billion, three hundred seventy million, one hundred thirty-five thousand, six hundred ninety".