3698681311 has 4 divisors (see below), whose sum is σ = 3983195272. Its totient is φ = 3414167352.

The previous prime is 3698681297. The next prime is 3698681323. The reversal of 3698681311 is 1131868963.

It is a happy number.

3698681311 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1131868963 = 2963 ⋅382001.

It is a cyclic number.

It is not a de Polignac number, because 3698681311 - 2¹¹ = 3698679263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3698681351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142256961 + ... + 142256986.

It is an arithmetic number, because the mean of its divisors is an integer number (995798818).

Almost surely, 2^3698681311 is an apocalyptic number.

3698681311 is a deficient number, since it is larger than the sum of its proper divisors (284513961).

3698681311 is a wasteful number, since it uses less digits than its factorization.

3698681311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284513960.

The product of its digits is 186624, while the sum is 46.

The square root of 3698681311 is about 60816.7847801904. The cubic root of 3698681311 is about 1546.4966050560.

The spelling of 3698681311 in words is "three billion, six hundred ninety-eight million, six hundred eighty-one thousand, three hundred eleven".