172429240516 has 27 divisors (see below), whose sum is σ = 326768769453. Its totient is φ = 79577743440.

The previous prime is 172429240409. The next prime is 172429240519. The reversal of 172429240516 is 615042924271.

The square root of 172429240516 is 415246.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 25507284100 + 146921956416 = 159710^2 + 383304^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172429240519) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10788411 + ... + 10804381.

Almost surely, 2^172429240516 is an apocalyptic number.

172429240516 is the 415246-th square number.

It is an amenable number.

172429240516 is a deficient number, since it is larger than the sum of its proper divisors (154339528937).

172429240516 is an frugal number, since it uses more digits than its factorization.

172429240516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31972 (or 15986 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 172429240516 in words is "one hundred seventy-two billion, four hundred twenty-nine million, two hundred forty thousand, five hundred sixteen".