42774379917 has 8 divisors (see below), whose sum is σ = 58872264960. Its totient is φ = 27596374080.

The previous prime is 42774379909. The next prime is 42774379943. The reversal of 42774379917 is 71997347724.

It is a happy number.

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

It is not a de Polignac number, because 42774379917 - 2³ = 42774379909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42774379957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229969692 + ... + 229969877.

It is an arithmetic number, because the mean of its divisors is an integer number (7359033120).

Almost surely, 2^42774379917 is an apocalyptic number.

It is an amenable number.

42774379917 is a deficient number, since it is larger than the sum of its proper divisors (16097885043).

42774379917 is a wasteful number, since it uses less digits than its factorization.

42774379917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459939603.

The product of its digits is 18670176, while the sum is 60.

The spelling of 42774379917 in words is "forty-two billion, seven hundred seventy-four million, three hundred seventy-nine thousand, nine hundred seventeen".