42465911771 has 4 divisors (see below), whose sum is σ = 42495672072. Its totient is φ = 42436151472.

The previous prime is 42465911723. The next prime is 42465911797. The reversal of 42465911771 is 17711956424.

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 42465911771 - 2²⁶ = 42398802907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42465911711) 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, 14878010 + ... + 14880863.

It is an arithmetic number, because the mean of its divisors is an integer number (10623918018).

Almost surely, 2^42465911771 is an apocalyptic number.

42465911771 is a deficient number, since it is larger than the sum of its proper divisors (29760301).

42465911771 is a wasteful number, since it uses less digits than its factorization.

42465911771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29760300.

The product of its digits is 423360, while the sum is 47.

The spelling of 42465911771 in words is "forty-two billion, four hundred sixty-five million, nine hundred eleven thousand, seven hundred seventy-one".