74564978326 has 8 divisors (see below), whose sum is σ = 111848778144. Its totient is φ = 37282052280.

The previous prime is 74564978303. The next prime is 74564978329. The reversal of 74564978326 is 62387946547.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74564978329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72291 + ... + 392881.

It is an arithmetic number, because the mean of its divisors is an integer number (13981097268).

Almost surely, 2^74564978326 is an apocalyptic number.

74564978326 is a deficient number, since it is larger than the sum of its proper divisors (37283799818).

74564978326 is a wasteful number, since it uses less digits than its factorization.

74564978326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436886.

The product of its digits is 60963840, while the sum is 61.

The spelling of 74564978326 in words is "seventy-four billion, five hundred sixty-four million, nine hundred seventy-eight thousand, three hundred twenty-six".