88421333421 has 4 divisors (see below), whose sum is σ = 117895111232. Its totient is φ = 58947555612.

The previous prime is 88421333339. The next prime is 88421333437. The reversal of 88421333421 is 12433312488.

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 not a de Polignac number, because 88421333421 - 2²⁶ = 88354224557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 88421333421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88421333321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14736888901 + ... + 14736888906.

It is an arithmetic number, because the mean of its divisors is an integer number (29473777808).

Almost surely, 2^88421333421 is an apocalyptic number.

It is an amenable number.

88421333421 is a deficient number, since it is larger than the sum of its proper divisors (29473777811).

88421333421 is a wasteful number, since it uses less digits than its factorization.

88421333421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29473777810.

The product of its digits is 110592, while the sum is 39.

The spelling of 88421333421 in words is "eighty-eight billion, four hundred twenty-one million, three hundred thirty-three thousand, four hundred twenty-one".