3611681031 has 16 divisors (see below), whose sum is σ = 5534265600. Its totient is φ = 2052285888.

The previous prime is 3611681011. The next prime is 3611681081. The reversal of 3611681031 is 1301861163.

3611681031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3611681031 - 2⁷ = 3611680903 is a prime.

It is a super-2 number, since 2×3611681031² = 26088479739370445922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3611681031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3611681011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476646 + ... + 484163.

It is an arithmetic number, because the mean of its divisors is an integer number (345891600).

Almost surely, 2^3611681031 is an apocalyptic number.

3611681031 is a deficient number, since it is larger than the sum of its proper divisors (1922584569).

3611681031 is a wasteful number, since it uses less digits than its factorization.

3611681031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960998.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 3611681031 is about 60097.2630907598. The cubic root of 3611681031 is about 1534.2747203699.

The spelling of 3611681031 in words is "three billion, six hundred eleven million, six hundred eighty-one thousand, thirty-one".