42047123363172 has 144 divisors (see below), whose sum is σ = 107253422045952. Its totient is φ = 13888677519360.

The previous prime is 42047123363153. The next prime is 42047123363173. The reversal of 42047123363172 is 27136332174024.

42047123363172 is a `hidden beast` number, since 4 + 2 + 0 + 4 + 7 + 1 + 2 + 3 + 3 + 631 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (42047123363173) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2847363333 + ... + 2847378099.

Almost surely, 2^{42047123363172} is an apocalyptic number.

It is an amenable number.

42047123363172 is an abundant number, since it is smaller than the sum of its proper divisors (65206298682780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42047123363172 is a wasteful number, since it uses less digits than its factorization.

42047123363172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16338 (or 16333 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 45.

The spelling of 42047123363172 in words is "forty-two trillion, forty-seven billion, one hundred twenty-three million, three hundred sixty-three thousand, one hundred seventy-two".