3885861239742 has 32 divisors (see below), whose sum is σ = 8661981715200. Its totient is φ = 1154930894208.

The previous prime is 3885861239731. The next prime is 3885861239789. The reversal of 3885861239742 is 2479321685883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002542242 + ... + 1002546117.

It is an arithmetic number, because the mean of its divisors is an integer number (270686928600).

Almost surely, 2^{3885861239742} is an apocalyptic number.

3885861239742 is an abundant number, since it is smaller than the sum of its proper divisors (4776120475458).

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

3885861239742 is a wasteful number, since it uses less digits than its factorization.

3885861239742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005088400.

The product of its digits is 139345920, while the sum is 66.

The spelling of 3885861239742 in words is "three trillion, eight hundred eighty-five billion, eight hundred sixty-one million, two hundred thirty-nine thousand, seven hundred forty-two".