3961023668653 has 8 divisors (see below), whose sum is σ = 4098620823480. Its totient is φ = 3823493856000.

The previous prime is 3961023668647. The next prime is 3961023668677. The reversal of 3961023668653 is 3568663201693.

It can be written as a sum of positive squares in 4 ways, for example, as 947112400809 + 3013911267844 = 973197^2 + 1736062^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3961023668653 - 2²⁹ = 3960486797741 is a prime.

It is a super-2 number, since 2×3961023668653² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961023668603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16715848 + ... + 16951153.

It is an arithmetic number, because the mean of its divisors is an integer number (512327602935).

Almost surely, 2^{3961023668653} is an apocalyptic number.

It is an amenable number.

3961023668653 is a deficient number, since it is larger than the sum of its proper divisors (137597154827).

3961023668653 is a wasteful number, since it uses less digits than its factorization.

3961023668653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33671087.

The product of its (nonzero) digits is 25194240, while the sum is 58.

The spelling of 3961023668653 in words is "three trillion, nine hundred sixty-one billion, twenty-three million, six hundred sixty-eight thousand, six hundred fifty-three".