5091810840 has 192 divisors, whose sum is σ = 17322552000. Its totient is φ = 1294672896.

The previous prime is 5091810827. The next prime is 5091810851. The reversal of 5091810840 is 480181905.

5091810840 is a `hidden beast` number, since 509 + 1 + 8 + 108 + 40 = 666.

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 = 5091810795 and 5091810804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3286386 + ... + 3287934.

It is an arithmetic number, because the mean of its divisors is an integer number (90221625).

Almost surely, 2^5091810840 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 5091810840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8661276000).

5091810840 is an abundant number, since it is smaller than the sum of its proper divisors (12230741160).

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

5091810840 is a wasteful number, since it uses less digits than its factorization.

5091810840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986 (or 1979 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 5091810840 is about 71356.9256624751. The cubic root of 5091810840 is about 1720.3788195718.

The spelling of 5091810840 in words is "five billion, ninety-one million, eight hundred ten thousand, eight hundred forty".