42279427949 has 8 divisors (see below), whose sum is σ = 46570809792. Its totient is φ = 38062679040.

The previous prime is 42279427921. The next prime is 42279427979. The reversal of 42279427949 is 94972497224.

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 42279427949 - 2²⁰ = 42278379373 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 (42279427979) 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, 18657044 + ... + 18659309.

It is an arithmetic number, because the mean of its divisors is an integer number (5821351224).

Almost surely, 2^42279427949 is an apocalyptic number.

It is an amenable number.

42279427949 is a deficient number, since it is larger than the sum of its proper divisors (4291381843).

42279427949 is a wasteful number, since it uses less digits than its factorization.

42279427949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37316467.

The product of its digits is 18289152, while the sum is 59.

The spelling of 42279427949 in words is "forty-two billion, two hundred seventy-nine million, four hundred twenty-seven thousand, nine hundred forty-nine".