172532673345 has 64 divisors (see below), whose sum is σ = 295660627200. Its totient is φ = 85611724800.

The previous prime is 172532673343. The next prime is 172532673347. The reversal of 172532673345 is 543376235271.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (172532673343) and next prime (172532673347).

It is not a de Polignac number, because 172532673345 - 2¹ = 172532673343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172532673294 and 172532673303.

It is not an unprimeable number, because it can be changed into a prime (172532673343) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8006185 + ... + 8027705.

It is an arithmetic number, because the mean of its divisors is an integer number (4619697300).

Almost surely, 2^172532673345 is an apocalyptic number.

172532673345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172532673345 is a deficient number, since it is larger than the sum of its proper divisors (123127953855).

172532673345 is a wasteful number, since it uses less digits than its factorization.

172532673345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21906.

The product of its digits is 3175200, while the sum is 48.

The spelling of 172532673345 in words is "one hundred seventy-two billion, five hundred thirty-two million, six hundred seventy-three thousand, three hundred forty-five".