67400708671 has 2 divisors, whose sum is σ = 67400708672. Its totient is φ = 67400708670.

The previous prime is 67400708653. The next prime is 67400708677. The reversal of 67400708671 is 17680700476.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67400708671 - 2²³ = 67392320063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67400708677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33700354335 + 33700354336.

It is an arithmetic number, because the mean of its divisors is an integer number (33700354336).

Almost surely, 2^67400708671 is an apocalyptic number.

67400708671 is a deficient number, since it is larger than the sum of its proper divisors (1).

67400708671 is an equidigital number, since it uses as much as digits as its factorization.

67400708671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 67400708671 in words is "sixty-seven billion, four hundred million, seven hundred eight thousand, six hundred seventy-one".