172345642634029 has 4 divisors (see below), whose sum is σ = 172428223202784. Its totient is φ = 172263062065276.

The previous prime is 172345642634023. The next prime is 172345642634119. The reversal of 172345642634029 is 920436246543271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172345642634029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172345642634023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41290281247 + ... + 41290285420.

It is an arithmetic number, because the mean of its divisors is an integer number (43107055800696).

Almost surely, 2^{172345642634029} is an apocalyptic number.

It is an amenable number.

172345642634029 is a deficient number, since it is larger than the sum of its proper divisors (82580568755).

172345642634029 is an equidigital number, since it uses as much as digits as its factorization.

172345642634029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82580568754.

The product of its (nonzero) digits is 52254720, while the sum is 58.

The spelling of 172345642634029 in words is "one hundred seventy-two trillion, three hundred forty-five billion, six hundred forty-two million, six hundred thirty-four thousand, twenty-nine".