172278050613 has 8 divisors (see below), whose sum is σ = 231457534176. Its totient is φ = 113975300400.

The previous prime is 172278050533. The next prime is 172278050627. The reversal of 172278050613 is 316050872271.

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

It is not a de Polignac number, because 172278050613 - 2¹² = 172278046517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172278050683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219182878 + ... + 219183663.

It is an arithmetic number, because the mean of its divisors is an integer number (28932191772).

Almost surely, 2^172278050613 is an apocalyptic number.

It is an amenable number.

172278050613 is a deficient number, since it is larger than the sum of its proper divisors (59179483563).

172278050613 is a wasteful number, since it uses less digits than its factorization.

172278050613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438366675.

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 172278050613 in words is "one hundred seventy-two billion, two hundred seventy-eight million, fifty thousand, six hundred thirteen".