74051223421 has 8 divisors (see below), whose sum is σ = 84631695680. Its totient is φ = 63471182688.

The previous prime is 74051223401. The next prime is 74051223469. The reversal of 74051223421 is 12432215047.

It is a happy number.

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 74051223421 - 2⁷ = 74051223293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74051223401) 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, 457150 + ... + 597568.

It is an arithmetic number, because the mean of its divisors is an integer number (10578961960).

Almost surely, 2^74051223421 is an apocalyptic number.

It is an amenable number.

74051223421 is a deficient number, since it is larger than the sum of its proper divisors (10580472259).

74051223421 is a wasteful number, since it uses less digits than its factorization.

74051223421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215763.

The product of its (nonzero) digits is 13440, while the sum is 31.

Adding to 74051223421 its reverse (12432215047), we get a palindrome (86483438468).

The spelling of 74051223421 in words is "seventy-four billion, fifty-one million, two hundred twenty-three thousand, four hundred twenty-one".