3939132261942 has 48 divisors (see below), whose sum is σ = 8574583837248. Its totient is φ = 1306930826880.

The previous prime is 3939132261917. The next prime is 3939132261983. The reversal of 3939132261942 is 2491622319393.

3939132261942 is a `hidden beast` number, since 3 + 9 + 3 + 9 + 13 + 2 + 2 + 619 + 4 + 2 = 666.

It is a super-2 number, since 2×3939132261942² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4648108 + ... + 5429840.

It is an arithmetic number, because the mean of its divisors is an integer number (178637163276).

Almost surely, 2^{3939132261942} is an apocalyptic number.

3939132261942 is an abundant number, since it is smaller than the sum of its proper divisors (4635451575306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3939132261942 is a wasteful number, since it uses less digits than its factorization.

3939132261942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783045 (or 783042 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 54.

The spelling of 3939132261942 in words is "three trillion, nine hundred thirty-nine billion, one hundred thirty-two million, two hundred sixty-one thousand, nine hundred forty-two".