5421421551018 has 32 divisors (see below), whose sum is σ = 11828830049280. Its totient is φ = 1642816968560.

The previous prime is 5421421551001. The next prime is 5421421551031. The reversal of 5421421551018 is 8101551241245.

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, 1988593 + ... + 3846731.

It is an arithmetic number, because the mean of its divisors is an integer number (369650939040).

Almost surely, 2^{5421421551018} is an apocalyptic number.

5421421551018 is an abundant number, since it is smaller than the sum of its proper divisors (6407408498262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5421421551018 is a wasteful number, since it uses less digits than its factorization.

5421421551018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902362.

The product of its (nonzero) digits is 64000, while the sum is 39.

The spelling of 5421421551018 in words is "five trillion, four hundred twenty-one billion, four hundred twenty-one million, five hundred fifty-one thousand, eighteen".