80771441808 has 20 divisors (see below), whose sum is σ = 208659558128. Its totient is φ = 26923813920.

The previous prime is 80771441801. The next prime is 80771441809. The reversal of 80771441808 is 80814417708.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1682738371 = 80771441808 / (8 + 0 + 7 + 7 + 1 + 4 + 4 + 1 + 8 + 0 + 8).

It is not an unprimeable number, because it can be changed into a prime (80771441801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841369138 + ... + 841369233.

Almost surely, 2^80771441808 is an apocalyptic number.

It is an amenable number.

80771441808 is an abundant number, since it is smaller than the sum of its proper divisors (127888116320).

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

80771441808 is a wasteful number, since it uses less digits than its factorization.

80771441808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682738382 (or 1682738376 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 48.

The spelling of 80771441808 in words is "eighty billion, seven hundred seventy-one million, four hundred forty-one thousand, eight hundred eight".