172262731206 has 8 divisors (see below), whose sum is σ = 344525462424. Its totient is φ = 57420910400.

The previous prime is 172262731159. The next prime is 172262731253. The reversal of 172262731206 is 602137262271.

It is an interprime number because it is at equal distance from previous prime (172262731159) and next prime (172262731253).

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

172262731206 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14355227595 + ... + 14355227606.

It is an arithmetic number, because the mean of its divisors is an integer number (43065682803).

Almost surely, 2^172262731206 is an apocalyptic number.

172262731206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172262731206 is a wasteful number, since it uses less digits than its factorization.

172262731206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28710455206.

The product of its (nonzero) digits is 84672, while the sum is 39.

Adding to 172262731206 its reverse (602137262271), we get a palindrome (774399993477).

The spelling of 172262731206 in words is "one hundred seventy-two billion, two hundred sixty-two million, seven hundred thirty-one thousand, two hundred six".