80542440000 has 945 divisors, whose sum is σ = 324638753439. Its totient is φ = 19071360000.

The previous prime is 80542439983. The next prime is 80542440019. The reversal of 80542440000 is 4424508.

The square root of 80542440000 is 283800.

It is a perfect power (a square), and thus also a powerful number.

80542440000 is a `hidden beast` number, since 80 + 542 + 4 + 40 + 0 + 0 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6314527296 + 74227912704 = 79464^2 + 272448^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 1873079979 + ... + 1873080021.

Almost surely, 2^80542440000 is an apocalyptic number.

80542440000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

80542440000 is the 283800-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80542440000

80542440000 is an abundant number, since it is smaller than the sum of its proper divisors (244096313439).

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

80542440000 is a wasteful number, since it uses less digits than its factorization.

80542440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 80542440000 its reverse (4424508), we get a palindrome (80546864508).

The spelling of 80542440000 in words is "eighty billion, five hundred forty-two million, four hundred forty thousand".