74306475421 has 4 divisors (see below), whose sum is σ = 74307570912. Its totient is φ = 74305379932.

The previous prime is 74306475409. The next prime is 74306475457. The reversal of 74306475421 is 12457460347.

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 a cyclic number.

It is not a de Polignac number, because 74306475421 - 2⁷ = 74306475293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74306475121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438775 + ... + 584068.

It is an arithmetic number, because the mean of its divisors is an integer number (18576892728).

Almost surely, 2^74306475421 is an apocalyptic number.

It is an amenable number.

74306475421 is a deficient number, since it is larger than the sum of its proper divisors (1095491).

74306475421 is a wasteful number, since it uses less digits than its factorization.

74306475421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095490.

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 74306475421 in words is "seventy-four billion, three hundred six million, four hundred seventy-five thousand, four hundred twenty-one".