83173828125 has 88 divisors (see below), whose sum is σ = 147656246976. Its totient is φ = 41500000000.

The previous prime is 83173828123. The next prime is 83173828141. The reversal of 83173828125 is 52182837138.

It is not a de Polignac number, because 83173828125 - 2¹ = 83173828123 is a prime.

Its product of digits (645120) is a multiple of the sum of its prime divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83173828123) by changing a digit.

It is a polite number, since it can be written in 87 ways as a sum of consecutive naturals, for example, 498046792 + ... + 498046958.

Almost surely, 2^83173828125 is an apocalyptic number.

83173828125 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

83173828125 is a deficient number, since it is larger than the sum of its proper divisors (64482418851).

83173828125 is an frugal number, since it uses more digits than its factorization.

83173828125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 192 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The spelling of 83173828125 in words is "eighty-three billion, one hundred seventy-three million, eight hundred twenty-eight thousand, one hundred twenty-five".