42742495478 has 8 divisors (see below), whose sum is σ = 64118168568. Its totient is φ = 21369772624.

The previous prime is 42742495447. The next prime is 42742495483. The reversal of 42742495478 is 87459424724.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700976 + ... + 759507.

It is an arithmetic number, because the mean of its divisors is an integer number (8014771071).

Almost surely, 2^42742495478 is an apocalyptic number.

42742495478 is a deficient number, since it is larger than the sum of its proper divisors (21375673090).

42742495478 is a wasteful number, since it uses less digits than its factorization.

42742495478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475118.

The product of its digits is 18063360, while the sum is 56.

The spelling of 42742495478 in words is "forty-two billion, seven hundred forty-two million, four hundred ninety-five thousand, four hundred seventy-eight".