42422715551 has 4 divisors (see below), whose sum is σ = 42860063232. Its totient is φ = 41985367872.

The previous prime is 42422715527. The next prime is 42422715611. The reversal of 42422715551 is 15551722424.

42422715551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42422715551 - 2²² = 42418521247 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 (42422715451) 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, 218673695 + ... + 218673888.

It is an arithmetic number, because the mean of its divisors is an integer number (10715015808).

Almost surely, 2^42422715551 is an apocalyptic number.

42422715551 is a deficient number, since it is larger than the sum of its proper divisors (437347681).

42422715551 is an equidigital number, since it uses as much as digits as its factorization.

42422715551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437347680.

The product of its digits is 112000, while the sum is 38.

The spelling of 42422715551 in words is "forty-two billion, four hundred twenty-two million, seven hundred fifteen thousand, five hundred fifty-one".