3935785806043 has 24 divisors (see below), whose sum is σ = 5089594715520. Its totient is φ = 3013575788160.

The previous prime is 3935785806041. The next prime is 3935785806077. The reversal of 3935785806043 is 3406085875393.

It is not a de Polignac number, because 3935785806043 - 2¹ = 3935785806041 is a prime.

It is a super-2 number, since 2×3935785806043² (a number of 26 digits) contains 22 as substring.

It is the 1983882-nd Hogben number.

It is not an unprimeable number, because it can be changed into a prime (3935785806041) by changing a digit.

It is a nontrivial repunit in base 1983881.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99635538 + ... + 99675031.

It is an arithmetic number, because the mean of its divisors is an integer number (212066446480).

Almost surely, 2^{3935785806043} is an apocalyptic number.

3935785806043 is a deficient number, since it is larger than the sum of its proper divisors (1153808909477).

3935785806043 is a wasteful number, since it uses less digits than its factorization.

3935785806043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199310627 (or 199310620 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 61.

The spelling of 3935785806043 in words is "three trillion, nine hundred thirty-five billion, seven hundred eighty-five million, eight hundred six thousand, forty-three".