68994511 has 2 divisors, whose sum is σ = 68994512. Its totient is φ = 68994510.

The previous prime is 68994487. The next prime is 68994533. The reversal of 68994511 is 11549986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68994511 - 2⁵ = 68994479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68994581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34497255 + 34497256.

It is an arithmetic number, because the mean of its divisors is an integer number (34497256).

Almost surely, 2^68994511 is an apocalyptic number.

68994511 is a deficient number, since it is larger than the sum of its proper divisors (1).

68994511 is an equidigital number, since it uses as much as digits as its factorization.

68994511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 43.

The square root of 68994511 is about 8306.2934573732. The cubic root of 68994511 is about 410.1457165971.

The spelling of 68994511 in words is "sixty-eight million, nine hundred ninety-four thousand, five hundred eleven".