172042380064 has 24 divisors (see below), whose sum is σ = 338880231900. Its totient is φ = 85977559296.

The previous prime is 172042380011. The next prime is 172042380091. The reversal of 172042380064 is 460083240271.

It can be written as a sum of positive squares in 2 ways, for example, as 137572744464 + 34469635600 = 370908^2 + 185660^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1299339 + ... + 1425610.

Almost surely, 2^172042380064 is an apocalyptic number.

It is an amenable number.

172042380064 is a deficient number, since it is larger than the sum of its proper divisors (166837851836).

172042380064 is a wasteful number, since it uses less digits than its factorization.

172042380064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726932 (or 2726924 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 172042380064 in words is "one hundred seventy-two billion, forty-two million, three hundred eighty thousand, sixty-four".