1057349205857 has 8 divisors (see below), whose sum is σ = 1271999044800. Its totient is φ = 858599355024.

The previous prime is 1057349205821. The next prime is 1057349205923. The reversal of 1057349205857 is 7585029437501.

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 1057349205857 - 2⁶ = 1057349205793 is a prime.

It is a super-2 number, since 2×1057349205857² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1057349205817) 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, 3974996882 + ... + 3974997147.

It is an arithmetic number, because the mean of its divisors is an integer number (158999880600).

Almost surely, 2^{1057349205857} is an apocalyptic number.

It is an amenable number.

1057349205857 is a deficient number, since it is larger than the sum of its proper divisors (214649838943).

1057349205857 is an equidigital number, since it uses as much as digits as its factorization.

1057349205857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7949994055.

The product of its (nonzero) digits is 10584000, while the sum is 56.

The spelling of 1057349205857 in words is "one trillion, fifty-seven billion, three hundred forty-nine million, two hundred five thousand, eight hundred fifty-seven".