5781399456 has 192 divisors, whose sum is σ = 17784748800. Its totient is φ = 1643765760.

The previous prime is 5781399427. The next prime is 5781399461. The reversal of 5781399456 is 6549931875.

It is a junction number, because it is equal to n+sod(n) for n = 5781399396 and 5781399405.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11096476 + ... + 11096996.

It is an arithmetic number, because the mean of its divisors is an integer number (92628900).

Almost surely, 2^5781399456 is an apocalyptic number.

5781399456 is a gapful number since it is divisible by the number (56) 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 5781399456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8892374400).

5781399456 is an abundant number, since it is smaller than the sum of its proper divisors (12003349344).

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

5781399456 is a wasteful number, since it uses less digits than its factorization.

5781399456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892 (or 870 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 57.

The square root of 5781399456 is about 76035.5144389778. The cubic root of 5781399456 is about 1794.7790538694.

The spelling of 5781399456 in words is "five billion, seven hundred eighty-one million, three hundred ninety-nine thousand, four hundred fifty-six".