80605280964 has 96 divisors (see below), whose sum is σ = 204381725184. Its totient is φ = 24577896960.

The previous prime is 80605280947. The next prime is 80605280993. The reversal of 80605280964 is 46908250608.

It is a happy number.

It is a super-2 number, since 2×80605280964² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8268277 + ... + 8278019.

It is an arithmetic number, because the mean of its divisors is an integer number (2128976304).

Almost surely, 2^80605280964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80605280964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102190862592).

80605280964 is an abundant number, since it is smaller than the sum of its proper divisors (123776444220).

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

80605280964 is a wasteful number, since it uses less digits than its factorization.

80605280964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10237 (or 10235 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 80605280964 in words is "eighty billion, six hundred five million, two hundred eighty thousand, nine hundred sixty-four".