74840574686 has 8 divisors (see below), whose sum is σ = 112262404944. Its totient is φ = 37419773040.

The previous prime is 74840574649. The next prime is 74840574719. The reversal of 74840574686 is 68647504847.

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

It is a super-2 number, since 2×74840574686² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 37850 + ... + 388733.

It is an arithmetic number, because the mean of its divisors is an integer number (14032800618).

Almost surely, 2^74840574686 is an apocalyptic number.

74840574686 is a deficient number, since it is larger than the sum of its proper divisors (37421830258).

74840574686 is a wasteful number, since it uses less digits than its factorization.

74840574686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514306.

The product of its (nonzero) digits is 36126720, while the sum is 59.

The spelling of 74840574686 in words is "seventy-four billion, eight hundred forty million, five hundred seventy-four thousand, six hundred eighty-six".