5421400081 has 8 divisors (see below), whose sum is σ = 5658307200. Its totient is φ = 5184592512.

The previous prime is 5421400069. The next prime is 5421400091. The reversal of 5421400081 is 1800041245.

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

It is a cyclic number.

It is not a de Polignac number, because 5421400081 - 2¹¹ = 5421398033 is a prime.

It is a super-2 number, since 2×5421400081² = 58783157676533613122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5421400021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99745 + ... + 144193.

It is an arithmetic number, because the mean of its divisors is an integer number (707288400).

Almost surely, 2^5421400081 is an apocalyptic number.

It is an amenable number.

5421400081 is a deficient number, since it is larger than the sum of its proper divisors (236907119).

5421400081 is a wasteful number, since it uses less digits than its factorization.

5421400081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49775.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 5421400081 is about 73630.1574152874. The cubic root of 5421400081 is about 1756.7251517378.

The spelling of 5421400081 in words is "five billion, four hundred twenty-one million, four hundred thousand, eighty-one".