172930424730561 has 12 divisors (see below), whose sum is σ = 249796068757092. Its totient is φ = 115283406368256.

The previous prime is 172930424730541. The next prime is 172930424730589. The reversal of 172930424730561 is 165037424039271.

172930424730561 is a `hidden beast` number, since 1 + 7 + 2 + 9 + 3 + 0 + 4 + 2 + 4 + 73 + 0 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 78856797618225 + 94073627112336 = 8880135^2 + 9699156^2 .

It is not a de Polignac number, because 172930424730561 - 2¹⁹ = 172930424206273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172930424730498 and 172930424730507.

It is not an unprimeable number, because it can be changed into a prime (172930424730541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294978576 + ... + 295564241.

It is an arithmetic number, because the mean of its divisors is an integer number (20816339063091).

Almost surely, 2^{172930424730561} is an apocalyptic number.

It is an amenable number.

172930424730561 is a deficient number, since it is larger than the sum of its proper divisors (76865644026531).

172930424730561 is a wasteful number, since it uses less digits than its factorization.

172930424730561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590575360 (or 590575357 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 172930424730561 in words is "one hundred seventy-two trillion, nine hundred thirty billion, four hundred twenty-four million, seven hundred thirty thousand, five hundred sixty-one".