82281604899 has 32 divisors (see below), whose sum is σ = 119685389824. Its totient is φ = 49979151360.

The previous prime is 82281604897. The next prime is 82281604903. The reversal of 82281604899 is 99840618228.

It is not a de Polignac number, because 82281604899 - 2¹ = 82281604897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82281604897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1199859 + ... + 1266579.

It is an arithmetic number, because the mean of its divisors is an integer number (3740168432).

Almost surely, 2^82281604899 is an apocalyptic number.

82281604899 is a deficient number, since it is larger than the sum of its proper divisors (37403784925).

82281604899 is a wasteful number, since it uses less digits than its factorization.

82281604899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67147.

The product of its (nonzero) digits is 3981312, while the sum is 57.

The spelling of 82281604899 in words is "eighty-two billion, two hundred eighty-one million, six hundred four thousand, eight hundred ninety-nine".