80821490080 has 48 divisors (see below), whose sum is σ = 191733147144. Its totient is φ = 32194437120.

The previous prime is 80821490069. The next prime is 80821490093. The reversal of 80821490080 is 8009412808.

It can be written as a sum of positive squares in 4 ways, for example, as 80218099984 + 603390096 = 283228^2 + 24564^2 .

It is a super-2 number, since 2×80821490080² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009437 + ... + 1086556.

Almost surely, 2^80821490080 is an apocalyptic number.

80821490080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80821490080 is an abundant number, since it is smaller than the sum of its proper divisors (110911657064).

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

80821490080 is a wasteful number, since it uses less digits than its factorization.

80821490080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096249 (or 2096241 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The spelling of 80821490080 in words is "eighty billion, eight hundred twenty-one million, four hundred ninety thousand, eighty".