8111837340 has 480 divisors, whose sum is σ = 27949211136. Its totient is φ = 1963906560.

The previous prime is 8111837329. The next prime is 8111837347. The reversal of 8111837340 is 437381118.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8111837295 and 8111837304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8111837347) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 97732939 + ... + 97733021.

Almost surely, 2^8111837340 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 8111837340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13974605568).

8111837340 is an abundant number, since it is smaller than the sum of its proper divisors (19837373796).

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

8111837340 is a wasteful number, since it uses less digits than its factorization.

8111837340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8111837340 is about 90065.7389910281. The cubic root of 8111837340 is about 2009.2766833792.

The spelling of 8111837340 in words is "eight billion, one hundred eleven million, eight hundred thirty-seven thousand, three hundred forty".