172279074074 has 8 divisors (see below), whose sum is σ = 259966028448. Its totient is φ = 85623731260.

The previous prime is 172279074073. The next prime is 172279074101. The reversal of 172279074074 is 470470972271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (172279074073) 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, 257902472 + ... + 257903139.

It is an arithmetic number, because the mean of its divisors is an integer number (32495753556).

Almost surely, 2^172279074074 is an apocalyptic number.

172279074074 is a deficient number, since it is larger than the sum of its proper divisors (87686954374).

172279074074 is a wasteful number, since it uses less digits than its factorization.

172279074074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515805780.

The product of its (nonzero) digits is 1382976, while the sum is 50.

The spelling of 172279074074 in words is "one hundred seventy-two billion, two hundred seventy-nine million, seventy-four thousand, seventy-four".