42937671109 has 4 divisors (see below), whose sum is σ = 42938087104. Its totient is φ = 42937255116.

The previous prime is 42937671071. The next prime is 42937671131. The reversal of 42937671109 is 90117673924.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42937671109 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 (42937671209) 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, 76954 + ... + 302980.

It is an arithmetic number, because the mean of its divisors is an integer number (10734521776).

Almost surely, 2^42937671109 is an apocalyptic number.

It is an amenable number.

42937671109 is a deficient number, since it is larger than the sum of its proper divisors (415995).

42937671109 is a wasteful number, since it uses less digits than its factorization.

42937671109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415994.

The product of its (nonzero) digits is 571536, while the sum is 49.

The spelling of 42937671109 in words is "forty-two billion, nine hundred thirty-seven million, six hundred seventy-one thousand, one hundred nine".