74529938685 has 32 divisors (see below), whose sum is σ = 120693215232. Its totient is φ = 39269260800.

The previous prime is 74529938683. The next prime is 74529938699. The reversal of 74529938685 is 58683992547.

It is not a de Polignac number, because 74529938685 - 2¹ = 74529938683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74529938683) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 638532 + ... + 746178.

It is an arithmetic number, because the mean of its divisors is an integer number (3771662976).

Almost surely, 2^74529938685 is an apocalyptic number.

It is an amenable number.

74529938685 is a deficient number, since it is larger than the sum of its proper divisors (46163276547).

74529938685 is a wasteful number, since it uses less digits than its factorization.

74529938685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108213.

The product of its digits is 130636800, while the sum is 66.

The spelling of 74529938685 in words is "seventy-four billion, five hundred twenty-nine million, nine hundred thirty-eight thousand, six hundred eighty-five".