3939132261943 has 4 divisors (see below), whose sum is σ = 3939216239848. Its totient is φ = 3939048284040.

The previous prime is 3939132261917. The next prime is 3939132261983. The reversal of 3939132261943 is 3491622319393.

3939132261943 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3939132261943 - 2²¹ = 3939130164791 is a prime.

It is a super-2 number, since 2×3939132261943² (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 (3939132261983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41918553 + ... + 42012418.

It is an arithmetic number, because the mean of its divisors is an integer number (984804059962).

Almost surely, 2^{3939132261943} is an apocalyptic number.

3939132261943 is a deficient number, since it is larger than the sum of its proper divisors (83977905).

3939132261943 is an equidigital number, since it uses as much as digits as its factorization.

3939132261943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83977904.

The product of its digits is 5668704, while the sum is 55.

The spelling of 3939132261943 in words is "three trillion, nine hundred thirty-nine billion, one hundred thirty-two million, two hundred sixty-one thousand, nine hundred forty-three".