75685702797 has 12 divisors (see below), whose sum is σ = 109341225084. Its totient is φ = 50449089600.

The previous prime is 75685702787. The next prime is 75685702871. The reversal of 75685702797 is 79720758657.

75685702797 is a `hidden beast` number, since 7 + 56 + 8 + 570 + 2 + 7 + 9 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19229091561 + 56456611236 = 138669^2 + 237606^2 .

It is not a de Polignac number, because 75685702797 - 2⁶ = 75685702733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75685702717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 610608 + ... + 724025.

It is an arithmetic number, because the mean of its divisors is an integer number (9111768757).

Almost surely, 2^75685702797 is an apocalyptic number.

It is an amenable number.

75685702797 is a deficient number, since it is larger than the sum of its proper divisors (33655522287).

75685702797 is a wasteful number, since it uses less digits than its factorization.

75685702797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340940 (or 1340937 counting only the distinct ones).

The product of its (nonzero) digits is 51861600, while the sum is 63.

The spelling of 75685702797 in words is "seventy-five billion, six hundred eighty-five million, seven hundred two thousand, seven hundred ninety-seven".