42427423942 has 4 divisors (see below), whose sum is σ = 63641135916. Its totient is φ = 21213711970.

The previous prime is 42427423939. The next prime is 42427423993. The reversal of 42427423942 is 24932472424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10606855984 + ... + 10606855987.

It is an arithmetic number, because the mean of its divisors is an integer number (15910283979).

Almost surely, 2^42427423942 is an apocalyptic number.

42427423942 is a deficient number, since it is larger than the sum of its proper divisors (21213711974).

42427423942 is a wasteful number, since it uses less digits than its factorization.

42427423942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21213711973.

The product of its digits is 774144, while the sum is 43.

The spelling of 42427423942 in words is "forty-two billion, four hundred twenty-seven million, four hundred twenty-three thousand, nine hundred forty-two".