42342121445 has 8 divisors (see below), whose sum is σ = 54719049336. Its totient is φ = 31268028096.

The previous prime is 42342121439. The next prime is 42342121483. The reversal of 42342121445 is 54412124324.

It can be written as a sum of positive squares in 4 ways, for example, as 2450448004 + 39891673441 = 49502^2 + 199729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42342121445 - 2²² = 42337927141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325708562 + ... + 325708691.

It is an arithmetic number, because the mean of its divisors is an integer number (6839881167).

Almost surely, 2^42342121445 is an apocalyptic number.

It is an amenable number.

42342121445 is a deficient number, since it is larger than the sum of its proper divisors (12376927891).

42342121445 is a wasteful number, since it uses less digits than its factorization.

42342121445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651417271.

The product of its digits is 30720, while the sum is 32.

Adding to 42342121445 its reverse (54412124324), we get a palindrome (96754245769).

The spelling of 42342121445 in words is "forty-two billion, three hundred forty-two million, one hundred twenty-one thousand, four hundred forty-five".