74631756859 has 6 divisors (see below), whose sum is σ = 82033253540. Its totient is φ = 67847051580.

The previous prime is 74631756841. The next prime is 74631756869. The reversal of 74631756859 is 95865713647.

It is a happy number.

It is not a de Polignac number, because 74631756859 - 2⁵ = 74631756827 is a prime.

It is a super-3 number, since 3×74631756859³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74631756797 and 74631756806.

It is not an unprimeable number, because it can be changed into a prime (74631756869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308395569 + ... + 308395810.

Almost surely, 2^74631756859 is an apocalyptic number.

74631756859 is a deficient number, since it is larger than the sum of its proper divisors (7401496681).

74631756859 is a wasteful number, since it uses less digits than its factorization.

74631756859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616791401 (or 616791390 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 61.

The spelling of 74631756859 in words is "seventy-four billion, six hundred thirty-one million, seven hundred fifty-six thousand, eight hundred fifty-nine".