42422651555 has 4 divisors (see below), whose sum is σ = 50907181872. Its totient is φ = 33938121240.

The previous prime is 42422651533. The next prime is 42422651563. The reversal of 42422651555 is 55515622424.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-42422651555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4242265151 + ... + 4242265160.

It is an arithmetic number, because the mean of its divisors is an integer number (12726795468).

Almost surely, 2^42422651555 is an apocalyptic number.

42422651555 is a deficient number, since it is larger than the sum of its proper divisors (8484530317).

42422651555 is an equidigital number, since it uses as much as digits as its factorization.

42422651555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8484530316.

The product of its digits is 480000, while the sum is 41.

The spelling of 42422651555 in words is "forty-two billion, four hundred twenty-two million, six hundred fifty-one thousand, five hundred fifty-five".