1068140491951 has 32 divisors (see below), whose sum is σ = 1256458452480. Its totient is φ = 899508758400.

The previous prime is 1068140491937. The next prime is 1068140491973. The reversal of 1068140491951 is 1591940418601.

It is a cyclic number.

It is not a de Polignac number, because 1068140491951 - 2¹¹ = 1068140489903 is a prime.

It is a super-2 number, since 2×1068140491951² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1068140491895 and 1068140491904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068140491991) 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, 45861 + ... + 1462321.

It is an arithmetic number, because the mean of its divisors is an integer number (39264326640).

Almost surely, 2^{1068140491951} is an apocalyptic number.

1068140491951 is a deficient number, since it is larger than the sum of its proper divisors (188317960529).

1068140491951 is a wasteful number, since it uses less digits than its factorization.

1068140491951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416607.

The product of its (nonzero) digits is 311040, while the sum is 49.

The spelling of 1068140491951 in words is "one trillion, sixty-eight billion, one hundred forty million, four hundred ninety-one thousand, nine hundred fifty-one".