80549774816 has 192 divisors, whose sum is σ = 196337312640. Its totient is φ = 31854551040.

The previous prime is 80549774813. The next prime is 80549774819. The reversal of 80549774816 is 61847794508.

It is an interprime number because it is at equal distance from previous prime (80549774813) and next prime (80549774819).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80549774813) 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, 58326446 + ... + 58327826.

It is an arithmetic number, because the mean of its divisors is an integer number (1022590170).

Almost surely, 2^80549774816 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 80549774816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98168656320).

80549774816 is an abundant number, since it is smaller than the sum of its proper divisors (115787537824).

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

80549774816 is a wasteful number, since it uses less digits than its factorization.

80549774816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502 (or 1460 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 59.

The spelling of 80549774816 in words is "eighty billion, five hundred forty-nine million, seven hundred seventy-four thousand, eight hundred sixteen".