74840574685 has 16 divisors (see below), whose sum is σ = 94607184960. Its totient is φ = 56678244480.

The previous prime is 74840574649. The next prime is 74840574719. The reversal of 74840574685 is 58647504847.

It is not a de Polignac number, because 74840574685 - 2¹¹ = 74840572637 is a prime.

It is a super-2 number, since 2×74840574685² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 172687 + ... + 423676.

It is an arithmetic number, because the mean of its divisors is an integer number (5912949060).

Almost surely, 2^74840574685 is an apocalyptic number.

It is an amenable number.

74840574685 is a deficient number, since it is larger than the sum of its proper divisors (19766610275).

74840574685 is a wasteful number, since it uses less digits than its factorization.

74840574685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597708.

The product of its (nonzero) digits is 30105600, while the sum is 58.

The spelling of 74840574685 in words is "seventy-four billion, eight hundred forty million, five hundred seventy-four thousand, six hundred eighty-five".