1057128718 has 4 divisors (see below), whose sum is σ = 1585693080. Its totient is φ = 528564358.

The previous prime is 1057128661. The next prime is 1057128733. The reversal of 1057128718 is 8178217501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8178217501 = 59539 ⋅137359.

It is a super-2 number, since 2×1057128718² = 2235042252840647048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264282178 + ... + 264282181.

It is an arithmetic number, because the mean of its divisors is an integer number (396423270).

Almost surely, 2^1057128718 is an apocalyptic number.

1057128718 is a deficient number, since it is larger than the sum of its proper divisors (528564362).

1057128718 is an equidigital number, since it uses as much as digits as its factorization.

1057128718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528564361.

The product of its (nonzero) digits is 31360, while the sum is 40.

The square root of 1057128718 is about 32513.5159279952. The cubic root of 1057128718 is about 1018.6913622616.

The spelling of 1057128718 in words is "one billion, fifty-seven million, one hundred twenty-eight thousand, seven hundred eighteen".