8557407743 has 8 divisors (see below), whose sum is σ = 8675956800. Its totient is φ = 8439114528.

The previous prime is 8557407737. The next prime is 8557407773. The reversal of 8557407743 is 3477047558.

It is a happy number.

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 8557407743 - 2²² = 8553213439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8557407691 and 8557407700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8557407773) 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, 3893 + ... + 130881.

It is an arithmetic number, because the mean of its divisors is an integer number (1084494600).

Almost surely, 2^8557407743 is an apocalyptic number.

8557407743 is a deficient number, since it is larger than the sum of its proper divisors (118549057).

8557407743 is a wasteful number, since it uses less digits than its factorization.

8557407743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127921.

The product of its (nonzero) digits is 3292800, while the sum is 50.

The square root of 8557407743 is about 92506.2578585903. The cubic root of 8557407743 is about 2045.4117286022.

The spelling of 8557407743 in words is "eight billion, five hundred fifty-seven million, four hundred seven thousand, seven hundred forty-three".