74320284386 has 16 divisors (see below), whose sum is σ = 112127084160. Its totient is φ = 36944702640.

The previous prime is 74320284373. The next prime is 74320284421. The reversal of 74320284386 is 68348202347.

It is a self number, because there is not a number n which added to its sum of digits gives 74320284386.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1392485 + ... + 1444871.

It is an arithmetic number, because the mean of its divisors is an integer number (7007942760).

Almost surely, 2^74320284386 is an apocalyptic number.

74320284386 is a deficient number, since it is larger than the sum of its proper divisors (37806799774).

74320284386 is a wasteful number, since it uses less digits than its factorization.

74320284386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56489.

The product of its (nonzero) digits is 1548288, while the sum is 47.

The spelling of 74320284386 in words is "seventy-four billion, three hundred twenty million, two hundred eighty-four thousand, three hundred eighty-six".