8111970880 has 112 divisors (see below), whose sum is σ = 21473915904. Its totient is φ = 2898524160.

The previous prime is 8111970871. The next prime is 8111970883. The reversal of 8111970880 is 880791118.

It is not an unprimeable number, because it can be changed into a prime (8111970883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97509 + ... + 160411.

It is an arithmetic number, because the mean of its divisors is an integer number (191731392).

Almost surely, 2^8111970880 is an apocalyptic number.

8111970880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8111970880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10736957952).

8111970880 is an abundant number, since it is smaller than the sum of its proper divisors (13361945024).

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

8111970880 is a wasteful number, since it uses less digits than its factorization.

8111970880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62964 (or 62954 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 43.

The square root of 8111970880 is about 90066.4803353612. The cubic root of 8111970880 is about 2009.2877091319.

The spelling of 8111970880 in words is "eight billion, one hundred eleven million, nine hundred seventy thousand, eight hundred eighty".