42106972759 has 4 divisors (see below), whose sum is σ = 44323129240. Its totient is φ = 39890816280.

The previous prime is 42106972757. The next prime is 42106972769. The reversal of 42106972759 is 95727960124.

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 42106972759 - 2¹ = 42106972757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42106972757) 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, 1108078212 + ... + 1108078249.

It is an arithmetic number, because the mean of its divisors is an integer number (11080782310).

Almost surely, 2^42106972759 is an apocalyptic number.

42106972759 is a deficient number, since it is larger than the sum of its proper divisors (2216156481).

42106972759 is a wasteful number, since it uses less digits than its factorization.

42106972759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216156480.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The spelling of 42106972759 in words is "forty-two billion, one hundred six million, nine hundred seventy-two thousand, seven hundred fifty-nine".