68870498647 has 2 divisors, whose sum is σ = 68870498648. Its totient is φ = 68870498646.

The previous prime is 68870498623. The next prime is 68870498687. The reversal of 68870498647 is 74689407886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68870498647 - 2⁷ = 68870498519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68870498687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34435249323 + 34435249324.

It is an arithmetic number, because the mean of its divisors is an integer number (34435249324).

Almost surely, 2^68870498647 is an apocalyptic number.

68870498647 is a deficient number, since it is larger than the sum of its proper divisors (1).

68870498647 is an equidigital number, since it uses as much as digits as its factorization.

68870498647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 130056192, while the sum is 67.

The spelling of 68870498647 in words is "sixty-eight billion, eight hundred seventy million, four hundred ninety-eight thousand, six hundred forty-seven".