172017334734 has 32 divisors (see below), whose sum is σ = 393374192640. Its totient is φ = 49123845792.

The previous prime is 172017334681. The next prime is 172017334789. The reversal of 172017334734 is 437433710271.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 911254 + ... + 1083705.

It is an arithmetic number, because the mean of its divisors is an integer number (12292943520).

Almost surely, 2^172017334734 is an apocalyptic number.

172017334734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

172017334734 is an abundant number, since it is smaller than the sum of its proper divisors (221356857906).

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

172017334734 is a wasteful number, since it uses less digits than its factorization.

172017334734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997024.

The product of its (nonzero) digits is 296352, while the sum is 42.

The spelling of 172017334734 in words is "one hundred seventy-two billion, seventeen million, three hundred thirty-four thousand, seven hundred thirty-four".