42312171278 has 8 divisors (see below), whose sum is σ = 68350430568. Its totient is φ = 19528694424.

The previous prime is 42312171259. The next prime is 42312171371. The reversal of 42312171278 is 87217121324.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813695576 + ... + 813695627.

It is an arithmetic number, because the mean of its divisors is an integer number (8543803821).

Almost surely, 2^42312171278 is an apocalyptic number.

42312171278 is a deficient number, since it is larger than the sum of its proper divisors (26038259290).

42312171278 is a wasteful number, since it uses less digits than its factorization.

42312171278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627391218.

The product of its digits is 37632, while the sum is 38.

The spelling of 42312171278 in words is "forty-two billion, three hundred twelve million, one hundred seventy-one thousand, two hundred seventy-eight".