80534698440 has 128 divisors (see below), whose sum is σ = 276445128960. Its totient is φ = 18386187264.

The previous prime is 80534698429. The next prime is 80534698471. The reversal of 80534698440 is 4489643508.

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, 660322 + ... + 772718.

It is an arithmetic number, because the mean of its divisors is an integer number (2159727570).

Almost surely, 2^80534698440 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 80534698440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138222564480).

80534698440 is an abundant number, since it is smaller than the sum of its proper divisors (195910430520).

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

80534698440 is a wasteful number, since it uses less digits than its factorization.

80534698440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113271 (or 113267 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 51.

The spelling of 80534698440 in words is "eighty billion, five hundred thirty-four million, six hundred ninety-eight thousand, four hundred forty".