5437675921 has 4 divisors (see below), whose sum is σ = 5438135152. Its totient is φ = 5437216692.

The previous prime is 5437675909. The next prime is 5437675979. The reversal of 5437675921 is 1295767345.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1295767345 = 5 ⋅259153469.

It is a cyclic number.

It is not a de Polignac number, because 5437675921 - 2⁹ = 5437675409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5437673921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211371 + ... + 235696.

It is an arithmetic number, because the mean of its divisors is an integer number (1359533788).

Almost surely, 2^5437675921 is an apocalyptic number.

It is an amenable number.

5437675921 is a deficient number, since it is larger than the sum of its proper divisors (459231).

5437675921 is a wasteful number, since it uses less digits than its factorization.

5437675921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459230.

The product of its digits is 1587600, while the sum is 49.

The square root of 5437675921 is about 73740.5988652113. The cubic root of 5437675921 is about 1758.4813778082.

The spelling of 5437675921 in words is "five billion, four hundred thirty-seven million, six hundred seventy-five thousand, nine hundred twenty-one".