3958712723381 has 8 divisors (see below), whose sum is σ = 4410236986680. Its totient is φ = 3528189588672.

The previous prime is 3958712723377. The next prime is 3958712723387. The reversal of 3958712723381 is 1833272178593.

It can be written as a sum of positive squares in 4 ways, for example, as 143761547281 + 3814951176100 = 379159^2 + 1953190^2 .

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 3958712723381 - 2² = 3958712723377 is a prime.

It is a super-2 number, since 2×3958712723381² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3958712723381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3958712723387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5250281750 + ... + 5250282503.

It is an arithmetic number, because the mean of its divisors is an integer number (551279623335).

Almost surely, 2^{3958712723381} is an apocalyptic number.

It is an amenable number.

3958712723381 is a deficient number, since it is larger than the sum of its proper divisors (451524263299).

3958712723381 is a wasteful number, since it uses less digits than its factorization.

3958712723381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10500564295.

The product of its digits is 15240960, while the sum is 59.

The spelling of 3958712723381 in words is "three trillion, nine hundred fifty-eight billion, seven hundred twelve million, seven hundred twenty-three thousand, three hundred eighty-one".