172830644028554 has 8 divisors (see below), whose sum is σ = 259248456973380. Its totient is φ = 86414491704096.

The previous prime is 172830644028551. The next prime is 172830644028563. The reversal of 172830644028554 is 455820446038271.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 172734374694025 + 96269334529 = 13142845^2 + 310273^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 172830644028493 and 172830644028502.

It is not an unprimeable number, because it can be changed into a prime (172830644028551) 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, 414894869 + ... + 415311224.

Almost surely, 2^{172830644028554} is an apocalyptic number.

172830644028554 is a deficient number, since it is larger than the sum of its proper divisors (86417812944826).

172830644028554 is a wasteful number, since it uses less digits than its factorization.

172830644028554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830310184.

The product of its (nonzero) digits is 51609600, while the sum is 59.

The spelling of 172830644028554 in words is "one hundred seventy-two trillion, eight hundred thirty billion, six hundred forty-four million, twenty-eight thousand, five hundred fifty-four".