5781694464 has 480 divisors, whose sum is σ = 21310248960. Its totient is φ = 1520861184.

The previous prime is 5781694453. The next prime is 5781694487. The reversal of 5781694464 is 4644961875.

5781694464 is a `hidden beast` number, since 578 + 1 + 6 + 9 + 4 + 4 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 5781694464.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15095617 + ... + 15095999.

It is an arithmetic number, because the mean of its divisors is an integer number (44396352).

Almost surely, 2^5781694464 is an apocalyptic number.

5781694464 is a gapful number since it is divisible by the number (54) 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 5781694464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10655124480).

5781694464 is an abundant number, since it is smaller than the sum of its proper divisors (15528554496).

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

5781694464 is a wasteful number, since it uses less digits than its factorization.

5781694464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 408 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 5781694464 is about 76037.4543498137. The cubic root of 5781694464 is about 1794.8095808019.

The spelling of 5781694464 in words is "five billion, seven hundred eighty-one million, six hundred ninety-four thousand, four hundred sixty-four".