5147840456 has 48 divisors (see below), whose sum is σ = 10728830700. Its totient is φ = 2313597440.

The previous prime is 5147840443. The next prime is 5147840459. The reversal of 5147840456 is 6540487415.

It can be written as a sum of positive squares in 2 ways, for example, as 5102816356 + 45024100 = 71434^2 + 6710^2 .

It is a super-2 number, since 2×5147840456² = 53000522720860575872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (5147840459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56276 + ... + 116028.

Almost surely, 2^5147840456 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 5147840456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5364415350).

5147840456 is an abundant number, since it is smaller than the sum of its proper divisors (5580990244).

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

5147840456 is a wasteful number, since it uses less digits than its factorization.

5147840456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59870 (or 59855 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 5147840456 is about 71748.4526383671. The cubic root of 5147840456 is about 1726.6660882281. Note that the first 3 decimals are identical.

The spelling of 5147840456 in words is "five billion, one hundred forty-seven million, eight hundred forty thousand, four hundred fifty-six".