1068745657 has 8 divisors (see below), whose sum is σ = 1227820032. Its totient is φ = 911270400.

The previous prime is 1068745637. The next prime is 1068745721. The reversal of 1068745657 is 7565478601.

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 1068745657 - 2¹⁵ = 1068712889 is a prime.

It is a super-2 number, since 2×1068745657² = 2284434558712723298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1068745657.

It is not an unprimeable number, because it can be changed into a prime (1068745627) 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, 398344 + ... + 401017.

It is an arithmetic number, because the mean of its divisors is an integer number (153477504).

Almost surely, 2^1068745657 is an apocalyptic number.

It is an amenable number.

1068745657 is a deficient number, since it is larger than the sum of its proper divisors (159074375).

1068745657 is an equidigital number, since it uses as much as digits as its factorization.

1068745657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799559.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The square root of 1068745657 is about 32691.6756529854. The cubic root of 1068745657 is about 1022.4092915151.

The spelling of 1068745657 in words is "one billion, sixty-eight million, seven hundred forty-five thousand, six hundred fifty-seven".