74127685696 has 21 divisors (see below), whose sum is σ = 147101448621. Its totient is φ = 37062753792.

The previous prime is 74127685673. The next prime is 74127685703. The reversal of 74127685696 is 69658672147.

It is a happy number.

The square root of 74127685696 is 272264.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 52441000000 + 21686685696 = 229000^2 + 147264^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2161096 + ... + 2195128.

Almost surely, 2^74127685696 is an apocalyptic number.

74127685696 is the 272264-th square number.

It is an amenable number.

74127685696 is a deficient number, since it is larger than the sum of its proper divisors (72973762925).

74127685696 is an frugal number, since it uses more digits than its factorization.

74127685696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68078 (or 34035 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 61.

The spelling of 74127685696 in words is "seventy-four billion, one hundred twenty-seven million, six hundred eighty-five thousand, six hundred ninety-six".