172306969824 has 72 divisors (see below), whose sum is σ = 497162602440. Its totient is φ = 52214229760.

The previous prime is 172306969823. The next prime is 172306969837. The reversal of 172306969824 is 428969603271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172306969823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7405179 + ... + 7428410.

It is an arithmetic number, because the mean of its divisors is an integer number (6905036145).

Almost surely, 2^172306969824 is an apocalyptic number.

It is an amenable number.

172306969824 is an abundant number, since it is smaller than the sum of its proper divisors (324855632616).

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

172306969824 is a wasteful number, since it uses less digits than its factorization.

172306969824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14833624 (or 14833605 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 172306969824 in words is "one hundred seventy-two billion, three hundred six million, nine hundred sixty-nine thousand, eight hundred twenty-four".