5811375440 has 80 divisors (see below), whose sum is σ = 14687059968. Its totient is φ = 2125644288.

The previous prime is 5811375419. The next prime is 5811375461. The reversal of 5811375440 is 445731185.

It is an interprime number because it is at equal distance from previous prime (5811375419) and next prime (5811375461).

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 5811375394 and 5811375403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85169 + ... + 137391.

Almost surely, 2^5811375440 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 5811375440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7343529984).

5811375440 is an abundant number, since it is smaller than the sum of its proper divisors (8875684528).

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

5811375440 is a wasteful number, since it uses less digits than its factorization.

5811375440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52356 (or 52350 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 5811375440 is about 76232.3778981084. The cubic root of 5811375440 is about 1797.8756254696.

The spelling of 5811375440 in words is "five billion, eight hundred eleven million, three hundred seventy-five thousand, four hundred forty".