74040773668 has 12 divisors (see below), whose sum is σ = 129574746252. Its totient is φ = 37019417600.

The previous prime is 74040773647. The next prime is 74040773759. The reversal of 74040773668 is 86637704047.

It can be written as a sum of positive squares in 2 ways, for example, as 7176122944 + 66864650724 = 84712^2 + 258582^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54205 + ... + 388612.

It is an arithmetic number, because the mean of its divisors is an integer number (10797895521).

Almost surely, 2^74040773668 is an apocalyptic number.

It is an amenable number.

74040773668 is a deficient number, since it is larger than the sum of its proper divisors (55533972584).

74040773668 is a wasteful number, since it uses less digits than its factorization.

74040773668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484622 (or 484620 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 52.

The spelling of 74040773668 in words is "seventy-four billion, forty million, seven hundred seventy-three thousand, six hundred sixty-eight".