75859087057 has 4 divisors (see below), whose sum is σ = 81694401460. Its totient is φ = 70023772656.

The previous prime is 75859087049. The next prime is 75859087061. The reversal of 75859087057 is 75078095857.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75078095857 = 12907 ⋅5816851.

It can be written as a sum of positive squares in 2 ways, for example, as 11057784336 + 64801302721 = 105156^2 + 254561^2 .

It is a cyclic number.

It is not a de Polignac number, because 75859087057 - 2³ = 75859087049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75859086986 and 75859087004.

It is not an unprimeable number, because it can be changed into a prime (75859087067) by changing a digit.

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, 2917657182 + ... + 2917657207.

It is an arithmetic number, because the mean of its divisors is an integer number (20423600365).

Almost surely, 2^75859087057 is an apocalyptic number.

It is an amenable number.

75859087057 is a deficient number, since it is larger than the sum of its proper divisors (5835314403).

75859087057 is a wasteful number, since it uses less digits than its factorization.

75859087057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5835314402.

The product of its (nonzero) digits is 24696000, while the sum is 61.

The spelling of 75859087057 in words is "seventy-five billion, eight hundred fifty-nine million, eighty-seven thousand, fifty-seven".