74701208021 has 16 divisors (see below), whose sum is σ = 82321833600. Its totient is φ = 67219224000.

The previous prime is 74701207993. The next prime is 74701208039. The reversal of 74701208021 is 12080210747.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 74701208021 - 2¹⁰ = 74701206997 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 (74701208321) 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 15 ways as a sum of consecutive naturals, for example, 5458175 + ... + 5471843.

It is an arithmetic number, because the mean of its divisors is an integer number (5145114600).

Almost surely, 2^74701208021 is an apocalyptic number.

It is an amenable number.

74701208021 is a deficient number, since it is larger than the sum of its proper divisors (7620625579).

74701208021 is a wasteful number, since it uses less digits than its factorization.

74701208021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18700.

The product of its (nonzero) digits is 6272, while the sum is 32.

Adding to 74701208021 its reverse (12080210747), we get a palindrome (86781418768).

The spelling of 74701208021 in words is "seventy-four billion, seven hundred one million, two hundred eight thousand, twenty-one".