42205315542 has 32 divisors (see below), whose sum is σ = 90985326432. Its totient is φ = 12974598144.

The previous prime is 42205315531. The next prime is 42205315597. The reversal of 42205315542 is 24551350224.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155083 + ... + 329334.

It is an arithmetic number, because the mean of its divisors is an integer number (2843291451).

Almost surely, 2^42205315542 is an apocalyptic number.

42205315542 is an abundant number, since it is smaller than the sum of its proper divisors (48780010890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42205315542 is a wasteful number, since it uses less digits than its factorization.

42205315542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485552.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 42205315542 its reverse (24551350224), we get a palindrome (66756665766).

The spelling of 42205315542 in words is "forty-two billion, two hundred five million, three hundred fifteen thousand, five hundred forty-two".