1071489568 has 12 divisors (see below), whose sum is σ = 2109495150. Its totient is φ = 535744768.

The previous prime is 1071489557. The next prime is 1071489571. The reversal of 1071489568 is 8659841701.

It can be written as a sum of positive squares in only one way, i.e., 712462864 + 359026704 = 26692^2 + 18948^2 .

It is a super-2 number, since 2×1071489568² = 2296179788665653248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16741993 + ... + 16742056.

Almost surely, 2^1071489568 is an apocalyptic number.

It is an amenable number.

1071489568 is a deficient number, since it is larger than the sum of its proper divisors (1038005582).

1071489568 is an equidigital number, since it uses as much as digits as its factorization.

1071489568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33484059 (or 33484051 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 49.

The square root of 1071489568 is about 32733.6152601573. The cubic root of 1071489568 is about 1023.2835259127.

The spelling of 1071489568 in words is "one billion, seventy-one million, four hundred eighty-nine thousand, five hundred sixty-eight".