42374457218 has 4 divisors (see below), whose sum is σ = 63561685830. Its totient is φ = 21187228608.

The previous prime is 42374457197. The next prime is 42374457221. The reversal of 42374457218 is 81275447324.

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

It can be written as a sum of positive squares in only one way, i.e., 37913152369 + 4461304849 = 194713^2 + 66793^2 .

It is a super-2 number, since 2×42374457218² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10593614303 + ... + 10593614306.

Almost surely, 2^42374457218 is an apocalyptic number.

42374457218 is a deficient number, since it is larger than the sum of its proper divisors (21187228612).

42374457218 is a wasteful number, since it uses less digits than its factorization.

42374457218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21187228611.

The product of its digits is 1505280, while the sum is 47.

The spelling of 42374457218 in words is "forty-two billion, three hundred seventy-four million, four hundred fifty-seven thousand, two hundred eighteen".