42173147197929 has 48 divisors (see below), whose sum is σ = 65571095021760. Its totient is φ = 23882052700800.

The previous prime is 42173147197927. The next prime is 42173147197969. The reversal of 42173147197929 is 92979174137124.

It is not a de Polignac number, because 42173147197929 - 2¹ = 42173147197927 is a prime.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 42173147197929.

It is not an unprimeable number, because it can be changed into a prime (42173147197927) 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, 22008562 + ... + 23847915.

It is an arithmetic number, because the mean of its divisors is an integer number (1366064479620).

Almost surely, 2^{42173147197929} is an apocalyptic number.

It is an amenable number.

42173147197929 is a deficient number, since it is larger than the sum of its proper divisors (23397947823831).

42173147197929 is a wasteful number, since it uses less digits than its factorization.

42173147197929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45856582 (or 45856551 counting only the distinct ones).

The product of its digits is 48009024, while the sum is 66.

The spelling of 42173147197929 in words is "forty-two trillion, one hundred seventy-three billion, one hundred forty-seven million, one hundred ninety-seven thousand, nine hundred twenty-nine".