42668351974 has 16 divisors (see below), whose sum is σ = 68590255968. Its totient is φ = 19855072512.

The previous prime is 42668351963. The next prime is 42668351977. The reversal of 42668351974 is 47915386624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42668351977) 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, 12533067 + ... + 12536470.

It is an arithmetic number, because the mean of its divisors is an integer number (4286890998).

Almost surely, 2^42668351974 is an apocalyptic number.

42668351974 is a deficient number, since it is larger than the sum of its proper divisors (25921903994).

42668351974 is a wasteful number, since it uses less digits than its factorization.

42668351974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25069599.

The product of its digits is 8709120, while the sum is 55.

The spelling of 42668351974 in words is "forty-two billion, six hundred sixty-eight million, three hundred fifty-one thousand, nine hundred seventy-four".