1068752691 has 32 divisors (see below), whose sum is σ = 1599037440. Its totient is φ = 705477600.

The previous prime is 1068752681. The next prime is 1068752723. The reversal of 1068752691 is 1962578601.

It is not a de Polignac number, because 1068752691 - 2²² = 1064558387 is a prime.

It is a super-2 number, since 2×1068752691² = 2284464629039482962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068752611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1871436 + ... + 1872006.

It is an arithmetic number, because the mean of its divisors is an integer number (49969920).

Almost surely, 2^1068752691 is an apocalyptic number.

1068752691 is a deficient number, since it is larger than the sum of its proper divisors (530284749).

1068752691 is a wasteful number, since it uses less digits than its factorization.

1068752691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 1068752691 is about 32691.7832337118. The cubic root of 1068752691 is about 1022.4115345218.

The spelling of 1068752691 in words is "one billion, sixty-eight million, seven hundred fifty-two thousand, six hundred ninety-one".