80504970840 has 384 divisors, whose sum is σ = 323352207360. Its totient is φ = 16949809152.

The previous prime is 80504970827. The next prime is 80504970863. The reversal of 80504970840 is 4807940508.

80504970840 is a `hidden beast` number, since 80 + 5 + 0 + 497 + 0 + 84 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1993489 + ... + 2033471.

It is an arithmetic number, because the mean of its divisors is an integer number (842063040).

Almost surely, 2^80504970840 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 80504970840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161676103680).

80504970840 is an abundant number, since it is smaller than the sum of its proper divisors (242847236520).

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

80504970840 is a wasteful number, since it uses less digits than its factorization.

80504970840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40071 (or 40064 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 80504970840 in words is "eighty billion, five hundred four million, nine hundred seventy thousand, eight hundred forty".