172641600043 has 6 divisors (see below), whose sum is σ = 189763081172. Its totient is φ = 156946909020.

The previous prime is 172641600037. The next prime is 172641600091. The reversal of 172641600043 is 340006146271.

It is a de Polignac number, because none of the positive numbers 2^k-172641600043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172641599981 and 172641600008.

It is not an unprimeable number, because it can be changed into a prime (172641600343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 713394921 + ... + 713395162.

Almost surely, 2^172641600043 is an apocalyptic number.

172641600043 is a deficient number, since it is larger than the sum of its proper divisors (17121481129).

172641600043 is a wasteful number, since it uses less digits than its factorization.

172641600043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426790105 (or 1426790094 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 172641600043 in words is "one hundred seventy-two billion, six hundred forty-one million, six hundred thousand, forty-three".