74806626064 has 45 divisors (see below), whose sum is σ = 146603622751. Its totient is φ = 36978281600.

The previous prime is 74806626049. The next prime is 74806626067. The reversal of 74806626064 is 46062660847.

It is a happy number.

The square root of 74806626064 is 273508.

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

It can be written as a sum of positive squares in 4 ways, for example, as 69242659600 + 5563966464 = 263140^2 + 74592^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74806625999 and 74806626017.

It is not an unprimeable number, because it can be changed into a prime (74806626067) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 110496894 + ... + 110497570.

Almost surely, 2^74806626064 is an apocalyptic number.

74806626064 is the 273508-th square number.

It is an amenable number.

74806626064 is a deficient number, since it is larger than the sum of its proper divisors (71796996687).

74806626064 is an frugal number, since it uses more digits than its factorization.

74806626064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 49.

Multiplying 74806626064 by its sum of digits (49), we get a square (3665524677136 = 1914556²).

The spelling of 74806626064 in words is "seventy-four billion, eight hundred six million, six hundred twenty-six thousand, sixty-four".