13985007279690 has 16 divisors (see below), whose sum is σ = 33564017471328. Its totient is φ = 3729335274576.

The previous prime is 13985007279671. The next prime is 13985007279721. The reversal of 13985007279690 is 9697270058931.

It is a super-2 number, since 2×13985007279690² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233083454632 + ... + 233083454691.

It is an arithmetic number, because the mean of its divisors is an integer number (2097751091958).

Almost surely, 2^{13985007279690} is an apocalyptic number.

13985007279690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13985007279690 is an abundant number, since it is smaller than the sum of its proper divisors (19579010191638).

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

13985007279690 is a wasteful number, since it uses less digits than its factorization.

13985007279690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466166909333.

The product of its (nonzero) digits is 51438240, while the sum is 66.

The spelling of 13985007279690 in words is "thirteen trillion, nine hundred eighty-five billion, seven million, two hundred seventy-nine thousand, six hundred ninety".