82409173251 has 8 divisors (see below), whose sum is σ = 111426488064. Its totient is φ = 54165653640.

The previous prime is 82409173229. The next prime is 82409173267. The reversal of 82409173251 is 15237190428.

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

It is not a de Polignac number, because 82409173251 - 2⁵ = 82409173219 is a prime.

It is a super-3 number, since 3×82409173251³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (82409174251) 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, 193448551 + ... + 193448976.

It is an arithmetic number, because the mean of its divisors is an integer number (13928311008).

Almost surely, 2^82409173251 is an apocalyptic number.

82409173251 is a deficient number, since it is larger than the sum of its proper divisors (29017314813).

82409173251 is a wasteful number, since it uses less digits than its factorization.

82409173251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386897601.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 82409173251 in words is "eighty-two billion, four hundred nine million, one hundred seventy-three thousand, two hundred fifty-one".