1068156387 has 6 divisors (see below), whose sum is σ = 1542892572. Its totient is φ = 712104252.

The previous prime is 1068156379. The next prime is 1068156407. The reversal of 1068156387 is 7836518601.

1068156387 is a `hidden beast` number, since 1 + 0 + 6 + 8 + 1 + 5 + 638 + 7 = 666.

It is not a de Polignac number, because 1068156387 - 2³ = 1068156379 is a prime.

It is a super-2 number, since 2×1068156387² = 2281916134177787538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068156347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59342013 + ... + 59342030.

It is an arithmetic number, because the mean of its divisors is an integer number (257148762).

Almost surely, 2^1068156387 is an apocalyptic number.

1068156387 is a deficient number, since it is larger than the sum of its proper divisors (474736185).

1068156387 is a wasteful number, since it uses less digits than its factorization.

1068156387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118684049 (or 118684046 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1068156387 is about 32682.6618713960. The cubic root of 1068156387 is about 1022.2213497345.

The spelling of 1068156387 in words is "one billion, sixty-eight million, one hundred fifty-six thousand, three hundred eighty-seven".