5126743840 has 96 divisors (see below), whose sum is σ = 12286254960. Its totient is φ = 2021376000.

The previous prime is 5126743793. The next prime is 5126743847. The reversal of 5126743840 is 483476215.

It can be written as a sum of positive squares in 8 ways, for example, as 2906072464 + 2220671376 = 53908^2 + 47124^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 5126743793 and 5126743802.

It is not an unprimeable number, because it can be changed into a prime (5126743847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4540396 + ... + 4541524.

Almost surely, 2^5126743840 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 5126743840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6143127480).

5126743840 is an abundant number, since it is smaller than the sum of its proper divisors (7159511120).

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

5126743840 is a wasteful number, since it uses less digits than its factorization.

5126743840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526 (or 1518 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 5126743840 is about 71601.2837873735. The cubic root of 5126743840 is about 1724.3041472570.

The spelling of 5126743840 in words is "five billion, one hundred twenty-six million, seven hundred forty-three thousand, eight hundred forty".