5213131643 has 8 divisors (see below), whose sum is σ = 5240439600. Its totient is φ = 5185863648.

The previous prime is 5213131621. The next prime is 5213131661. The reversal of 5213131643 is 3461313125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5213131643 - 2⁸ = 5213131387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5213131543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272180 + ... + 290702.

It is an arithmetic number, because the mean of its divisors is an integer number (655054950).

Almost surely, 2^5213131643 is an apocalyptic number.

5213131643 is a deficient number, since it is larger than the sum of its proper divisors (27307957).

5213131643 is a wasteful number, since it uses less digits than its factorization.

5213131643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19981.

The product of its digits is 6480, while the sum is 29.

The square root of 5213131643 is about 72202.0196601175. The cubic root of 5213131643 is about 1733.9353364278.

Adding to 5213131643 its reverse (3461313125), we get a palindrome (8674444768).

The spelling of 5213131643 in words is "five billion, two hundred thirteen million, one hundred thirty-one thousand, six hundred forty-three".