75843413857 has 8 divisors (see below), whose sum is σ = 79031399400. Its totient is φ = 72693608064.

The previous prime is 75843413851. The next prime is 75843413873. The reversal of 75843413857 is 75831434857.

It can be written as a sum of positive squares in 4 ways, for example, as 3585135376 + 72258278481 = 59876^2 + 268809^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 75843413857 - 2³⁵ = 41483675489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75843413798 and 75843413807.

It is not an unprimeable number, because it can be changed into a prime (75843413851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9540882 + ... + 9548827.

It is an arithmetic number, because the mean of its divisors is an integer number (9878924925).

Almost surely, 2^75843413857 is an apocalyptic number.

It is an amenable number.

75843413857 is a deficient number, since it is larger than the sum of its proper divisors (3187985543).

75843413857 is a wasteful number, since it uses less digits than its factorization.

75843413857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19089875.

The product of its digits is 11289600, while the sum is 55.

The spelling of 75843413857 in words is "seventy-five billion, eight hundred forty-three million, four hundred thirteen thousand, eight hundred fifty-seven".