3959674620681 has 32 divisors (see below), whose sum is σ = 5695837797888. Its totient is φ = 2432373672960.

The previous prime is 3959674620677. The next prime is 3959674620689. The reversal of 3959674620681 is 1860264769593.

It is not a de Polignac number, because 3959674620681 - 2² = 3959674620677 is a prime.

It is a super-2 number, since 2×3959674620681² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3959674620689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222357280 + ... + 222375086.

It is an arithmetic number, because the mean of its divisors is an integer number (177994931184).

It is a 1-persistent number, because it is pandigital, but 2⋅3959674620681 = 7919349241362 is not.

Almost surely, 2^{3959674620681} is an apocalyptic number.

It is an amenable number.

3959674620681 is a deficient number, since it is larger than the sum of its proper divisors (1736163177207).

3959674620681 is a wasteful number, since it uses less digits than its factorization.

3959674620681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27681.

The product of its (nonzero) digits is 117573120, while the sum is 66.

The spelling of 3959674620681 in words is "three trillion, nine hundred fifty-nine billion, six hundred seventy-four million, six hundred twenty thousand, six hundred eighty-one".