5421331544 has 8 divisors (see below), whose sum is σ = 10164996660. Its totient is φ = 2710665768.

The previous prime is 5421331537. The next prime is 5421331547. The reversal of 5421331544 is 4451331245.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 5421331544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421331547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338833214 + ... + 338833229.

Almost surely, 2^5421331544 is an apocalyptic number.

It is an amenable number.

5421331544 is a deficient number, since it is larger than the sum of its proper divisors (4743665116).

5421331544 is a wasteful number, since it uses less digits than its factorization.

5421331544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677666449 (or 677666445 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 5421331544 is about 73629.6919998991. The cubic root of 5421331544 is about 1756.7177489035.

Adding to 5421331544 its reverse (4451331245), we get a palindrome (9872662789).

The spelling of 5421331544 in words is "five billion, four hundred twenty-one million, three hundred thirty-one thousand, five hundred forty-four".