1068140491937 has 2 divisors, whose sum is σ = 1068140491938. Its totient is φ = 1068140491936.

The previous prime is 1068140491933. The next prime is 1068140491973. The reversal of 1068140491937 is 7391940418601.

Together with next prime (1068140491973) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 939201327376 + 128939164561 = 969124^2 + 359081^2 .

It is a cyclic number.

It is not a de Polignac number, because 1068140491937 - 2² = 1068140491933 is a prime.

It is a super-2 number, since 2×1068140491937² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1068140491933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534070245968 + 534070245969.

It is an arithmetic number, because the mean of its divisors is an integer number (534070245969).

Almost surely, 2^{1068140491937} is an apocalyptic number.

It is an amenable number.

1068140491937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068140491937 is an equidigital number, since it uses as much as digits as its factorization.

1068140491937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 1068140491937 in words is "one trillion, sixty-eight billion, one hundred forty million, four hundred ninety-one thousand, nine hundred thirty-seven".