3726840705690 has 32 divisors (see below), whose sum is σ = 8976023430336. Its totient is φ = 990312439680.

The previous prime is 3726840705593. The next prime is 3726840705697. The reversal of 3726840705690 is 965070486273.

It is a super-2 number, since 2×3726840705690² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3726840705690.

It is not an unprimeable number, because it can be changed into a prime (3726840705697) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 219475651 + ... + 219492630.

It is an arithmetic number, because the mean of its divisors is an integer number (280500732198).

Almost surely, 2^{3726840705690} is an apocalyptic number.

3726840705690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3726840705690 is an abundant number, since it is smaller than the sum of its proper divisors (5249182724646).

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

3726840705690 is a wasteful number, since it uses less digits than its factorization.

3726840705690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438968574.

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 3726840705690 in words is "three trillion, seven hundred twenty-six billion, eight hundred forty million, seven hundred five thousand, six hundred ninety".