82431100406 has 4 divisors (see below), whose sum is σ = 123646650612. Its totient is φ = 41215550202.

The previous prime is 82431100399. The next prime is 82431100457. The reversal of 82431100406 is 60400113428.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20607775100 + ... + 20607775103.

It is an arithmetic number, because the mean of its divisors is an integer number (30911662653).

Almost surely, 2^82431100406 is an apocalyptic number.

82431100406 is a deficient number, since it is larger than the sum of its proper divisors (41215550206).

82431100406 is a wasteful number, since it uses less digits than its factorization.

82431100406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41215550205.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 82431100406 in words is "eighty-two billion, four hundred thirty-one million, one hundred thousand, four hundred six".