68737811 has 2 divisors, whose sum is σ = 68737812. Its totient is φ = 68737810.

The previous prime is 68737741. The next prime is 68737813. The reversal of 68737811 is 11873786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68737811 - 2²⁶ = 1628947 is a prime.

It is a super-2 number, since 2×68737811² = 9449773322143442, which contains 22 as substring.

Together with 68737813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68737813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34368905 + 34368906.

It is an arithmetic number, because the mean of its divisors is an integer number (34368906).

Almost surely, 2^68737811 is an apocalyptic number.

68737811 is a deficient number, since it is larger than the sum of its proper divisors (1).

68737811 is an equidigital number, since it uses as much as digits as its factorization.

68737811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 41.

The square root of 68737811 is about 8290.8269189508. The cubic root of 68737811 is about 409.6364236707.

The spelling of 68737811 in words is "sixty-eight million, seven hundred thirty-seven thousand, eight hundred eleven".