42939991473 has 16 divisors (see below), whose sum is σ = 59891619456. Its totient is φ = 27313721600.

The previous prime is 42939991459. The next prime is 42939991483. The reversal of 42939991473 is 37419993924.

It is a cyclic number.

It is not a de Polignac number, because 42939991473 - 2⁵ = 42939991441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42939991483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 748290 + ... + 803627.

It is an arithmetic number, because the mean of its divisors is an integer number (3743226216).

Almost surely, 2^42939991473 is an apocalyptic number.

It is an amenable number.

42939991473 is a deficient number, since it is larger than the sum of its proper divisors (16951627983).

42939991473 is a wasteful number, since it uses less digits than its factorization.

42939991473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552344.

The product of its digits is 13226976, while the sum is 60.

The spelling of 42939991473 in words is "forty-two billion, nine hundred thirty-nine million, nine hundred ninety-one thousand, four hundred seventy-three".