74774198706 has 64 divisors (see below), whose sum is σ = 157786030080. Its totient is φ = 23588196480.

The previous prime is 74774198671. The next prime is 74774198711. The reversal of 74774198706 is 60789147747.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74774198706.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 13800910 + ... + 13806326.

It is an arithmetic number, because the mean of its divisors is an integer number (2465406720).

Almost surely, 2^74774198706 is an apocalyptic number.

74774198706 is an abundant number, since it is smaller than the sum of its proper divisors (83011831374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74774198706 is a wasteful number, since it uses less digits than its factorization.

74774198706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7079.

The product of its (nonzero) digits is 16595712, while the sum is 60.

The spelling of 74774198706 in words is "seventy-four billion, seven hundred seventy-four million, one hundred ninety-eight thousand, seven hundred six".