68950317479 has 2 divisors, whose sum is σ = 68950317480. Its totient is φ = 68950317478.

The previous prime is 68950317427. The next prime is 68950317503. The reversal of 68950317479 is 97471305986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68950317479 - 2³² = 64655350183 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68950317679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34475158739 + 34475158740.

It is an arithmetic number, because the mean of its divisors is an integer number (34475158740).

Almost surely, 2^68950317479 is an apocalyptic number.

68950317479 is a deficient number, since it is larger than the sum of its proper divisors (1).

68950317479 is an equidigital number, since it uses as much as digits as its factorization.

68950317479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 68950317479 in words is "sixty-eight billion, nine hundred fifty million, three hundred seventeen thousand, four hundred seventy-nine".