67400400047 has 2 divisors, whose sum is σ = 67400400048. Its totient is φ = 67400400046.

The previous prime is 67400400031. The next prime is 67400400049. The reversal of 67400400047 is 74000400476.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67400400047 - 2⁴ = 67400400031 is a prime.

Together with 67400400049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 67400399986 and 67400400022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67400400049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33700200023 + 33700200024.

It is an arithmetic number, because the mean of its divisors is an integer number (33700200024).

Almost surely, 2^67400400047 is an apocalyptic number.

67400400047 is a deficient number, since it is larger than the sum of its proper divisors (1).

67400400047 is an equidigital number, since it uses as much as digits as its factorization.

67400400047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 32.

The spelling of 67400400047 in words is "sixty-seven billion, four hundred million, four hundred thousand, forty-seven".