80872993936 has 240 divisors, whose sum is σ = 193479997440. Its totient is φ = 32606945280.

The previous prime is 80872993909. The next prime is 80872993939. The reversal of 80872993936 is 63939927808.

It is a happy number.

It is a super-2 number, since 2×80872993936² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80872993939) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140160880 + ... + 140161456.

It is an arithmetic number, because the mean of its divisors is an integer number (806166656).

Almost surely, 2^80872993936 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 80872993936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96739998720).

80872993936 is an abundant number, since it is smaller than the sum of its proper divisors (112607003504).

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

80872993936 is a wasteful number, since it uses less digits than its factorization.

80872993936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 64.

The spelling of 80872993936 in words is "eighty billion, eight hundred seventy-two million, nine hundred ninety-three thousand, nine hundred thirty-six".