3975858085749 has 16 divisors (see below), whose sum is σ = 5982482387520. Its totient is φ = 2326520927360.

The previous prime is 3975858085627. The next prime is 3975858085757. The reversal of 3975858085749 is 9475808585793.

It is a cyclic number.

It is not a de Polignac number, because 3975858085749 - 2¹³ = 3975858077557 is a prime.

It is a super-3 number, since 3×3975858085749³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3975858085769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2077249872 + ... + 2077251785.

It is an arithmetic number, because the mean of its divisors is an integer number (373905149220).

Almost surely, 2^{3975858085749} is an apocalyptic number.

It is an amenable number.

3975858085749 is a deficient number, since it is larger than the sum of its proper divisors (2006624301771).

3975858085749 is a wasteful number, since it uses less digits than its factorization.

3975858085749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4154501700.

The product of its (nonzero) digits is 3048192000, while the sum is 78.

The spelling of 3975858085749 in words is "three trillion, nine hundred seventy-five billion, eight hundred fifty-eight million, eighty-five thousand, seven hundred forty-nine".