5421221858 has 32 divisors (see below), whose sum is σ = 8874726336. Its totient is φ = 2468651328.

The previous prime is 5421221801. The next prime is 5421221887. The reversal of 5421221858 is 8581221245.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2422316 + ... + 2424552.

It is an arithmetic number, because the mean of its divisors is an integer number (277335198).

Almost surely, 2^5421221858 is an apocalyptic number.

5421221858 is a deficient number, since it is larger than the sum of its proper divisors (3453504478).

5421221858 is a wasteful number, since it uses less digits than its factorization.

5421221858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458.

The product of its digits is 51200, while the sum is 38.

The square root of 5421221858 is about 73628.9471471649. The cubic root of 5421221858 is about 1756.7059013441.

The spelling of 5421221858 in words is "five billion, four hundred twenty-one million, two hundred twenty-one thousand, eight hundred fifty-eight".