42939742539 has 8 divisors (see below), whose sum is σ = 57254460480. Its totient is φ = 28625759816.

The previous prime is 42939742511. The next prime is 42939742541. The reversal of 42939742539 is 93524793924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42939742539 - 2⁵ = 42939742507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42939742639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28869 + ... + 294470.

It is an arithmetic number, because the mean of its divisors is an integer number (7156807560).

Almost surely, 2^42939742539 is an apocalyptic number.

42939742539 is a deficient number, since it is larger than the sum of its proper divisors (14314717941).

42939742539 is a wasteful number, since it uses less digits than its factorization.

42939742539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367609.

The product of its digits is 14696640, while the sum is 57.

The spelling of 42939742539 in words is "forty-two billion, nine hundred thirty-nine million, seven hundred forty-two thousand, five hundred thirty-nine".