42668254538 has 64 divisors (see below), whose sum is σ = 82251106560. Its totient is φ = 16145160192.

The previous prime is 42668254529. The next prime is 42668254543. The reversal of 42668254538 is 83545286624.

It is a self number, because there is not a number n which added to its sum of digits gives 42668254538.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 526970 + ... + 602522.

It is an arithmetic number, because the mean of its divisors is an integer number (1285173540).

Almost surely, 2^42668254538 is an apocalyptic number.

42668254538 is a deficient number, since it is larger than the sum of its proper divisors (39582852022).

42668254538 is a wasteful number, since it uses less digits than its factorization.

42668254538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75711.

The product of its digits is 11059200, while the sum is 53.

The spelling of 42668254538 in words is "forty-two billion, six hundred sixty-eight million, two hundred fifty-four thousand, five hundred thirty-eight".