5421453381 has 6 divisors (see below), whose sum is σ = 7830988230. Its totient is φ = 3614302248.

The previous prime is 5421453377. The next prime is 5421453397. The reversal of 5421453381 is 1833541245.

5421453381 is a `hidden beast` number, since 5 + 42 + 1 + 4 + 533 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4278337281 + 1143116100 = 65409^2 + 33810^2 .

It is not a de Polignac number, because 5421453381 - 2² = 5421453377 is a prime.

It is a super-2 number, since 2×5421453381² = 58784313524712662322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421458381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 301191846 + ... + 301191863.

It is an arithmetic number, because the mean of its divisors is an integer number (1305164705).

Almost surely, 2^5421453381 is an apocalyptic number.

It is an amenable number.

5421453381 is a deficient number, since it is larger than the sum of its proper divisors (2409534849).

5421453381 is a wasteful number, since it uses less digits than its factorization.

5421453381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602383715 (or 602383712 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 5421453381 is about 73630.5193584834. The cubic root of 5421453381 is about 1756.7309087466.

The spelling of 5421453381 in words is "five billion, four hundred twenty-one million, four hundred fifty-three thousand, three hundred eighty-one".