42444045155 has 8 divisors (see below), whose sum is σ = 50934013872. Its totient is φ = 33954463008.

The previous prime is 42444045139. The next prime is 42444045169. The reversal of 42444045155 is 55154044424.

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 42444045155 - 2⁴ = 42444045139 is a prime.

It is a Duffinian 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, 274484 + ... + 400286.

It is an arithmetic number, because the mean of its divisors is an integer number (6366751734).

Almost surely, 2^42444045155 is an apocalyptic number.

42444045155 is a deficient number, since it is larger than the sum of its proper divisors (8489968717).

42444045155 is a wasteful number, since it uses less digits than its factorization.

42444045155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193285.

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 42444045155 its reverse (55154044424), we get a palindrome (97598089579).

The spelling of 42444045155 in words is "forty-two billion, four hundred forty-four million, forty-five thousand, one hundred fifty-five".