82449420880 has 40 divisors (see below), whose sum is σ = 191993149152. Its totient is φ = 32928457344.

The previous prime is 82449420853. The next prime is 82449420881. The reversal of 82449420880 is 8802494428.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82449420881) 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, 749974 + ... + 852853.

Almost surely, 2^82449420880 is an apocalyptic number.

82449420880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

82449420880 is an abundant number, since it is smaller than the sum of its proper divisors (109543728272).

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

82449420880 is a wasteful number, since it uses less digits than its factorization.

82449420880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603483 (or 1603477 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 49.

The spelling of 82449420880 in words is "eighty-two billion, four hundred forty-nine million, four hundred twenty thousand, eight hundred eighty".