5421221870393 has 4 divisors (see below), whose sum is σ = 6195682137600. Its totient is φ = 4646761603188.

The previous prime is 5421221870369. The next prime is 5421221870531. The reversal of 5421221870393 is 3930781221245.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5421221870393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5421221870693) 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, 387230133593 + ... + 387230133606.

It is an arithmetic number, because the mean of its divisors is an integer number (1548920534400).

Almost surely, 2^{5421221870393} is an apocalyptic number.

It is an amenable number.

5421221870393 is a deficient number, since it is larger than the sum of its proper divisors (774460267207).

5421221870393 is an equidigital number, since it uses as much as digits as its factorization.

5421221870393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774460267206.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 5421221870393 in words is "five trillion, four hundred twenty-one billion, two hundred twenty-one million, eight hundred seventy thousand, three hundred ninety-three".