74364642747 has 12 divisors (see below), whose sum is σ = 109018813800. Its totient is φ = 48836481408.

The previous prime is 74364642739. The next prime is 74364642763. The reversal of 74364642747 is 74724646347.

74364642747 is a `hidden beast` number, since 7 + 4 + 364 + 6 + 4 + 274 + 7 = 666.

It is not a de Polignac number, because 74364642747 - 2³ = 74364642739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74364642693 and 74364642702.

It is not an unprimeable number, because it can be changed into a prime (74364642047) 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 11 ways as a sum of consecutive naturals, for example, 61661622 + ... + 61662827.

It is an arithmetic number, because the mean of its divisors is an integer number (9084901150).

Almost surely, 2^74364642747 is an apocalyptic number.

74364642747 is a deficient number, since it is larger than the sum of its proper divisors (34654171053).

74364642747 is a wasteful number, since it uses less digits than its factorization.

74364642747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123324522 (or 123324519 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 54.

The spelling of 74364642747 in words is "seventy-four billion, three hundred sixty-four million, six hundred forty-two thousand, seven hundred forty-seven".