5437643538 has 8 divisors (see below), whose sum is σ = 10875287088. Its totient is φ = 1812547844.

The previous prime is 5437643527. The next prime is 5437643539. The reversal of 5437643538 is 8353467345.

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

5437643538 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (5437643539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453136956 + ... + 453136967.

It is an arithmetic number, because the mean of its divisors is an integer number (1359410886).

Almost surely, 2^5437643538 is an apocalyptic number.

5437643538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5437643538 is a wasteful number, since it uses less digits than its factorization.

5437643538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906273928.

The product of its digits is 3628800, while the sum is 48.

The square root of 5437643538 is about 73740.3792911319. The cubic root of 5437643538 is about 1758.4778870389.

The spelling of 5437643538 in words is "five billion, four hundred thirty-seven million, six hundred forty-three thousand, five hundred thirty-eight".