8077722840 has 192 divisors, whose sum is σ = 29596543200. Its totient is φ = 1958204160.

The previous prime is 8077722823. The next prime is 8077722847. The reversal of 8077722840 is 482277708.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8077722847) 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, 99774 + ... + 161586.

Almost surely, 2^8077722840 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 8077722840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14798271600).

8077722840 is an abundant number, since it is smaller than the sum of its proper divisors (21518820360).

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

8077722840 is a wasteful number, since it uses less digits than its factorization.

8077722840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61855 (or 61834 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The square root of 8077722840 is about 89876.1527881562. The cubic root of 8077722840 is about 2006.4560406785.

The spelling of 8077722840 in words is "eight billion, seventy-seven million, seven hundred twenty-two thousand, eight hundred forty".