67700400401 has 2 divisors, whose sum is σ = 67700400402. Its totient is φ = 67700400400.

The previous prime is 67700400389. The next prime is 67700400403. The reversal of 67700400401 is 10400400776.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46063461376 + 21636939025 = 214624^2 + 147095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67700400401 is a prime.

Together with 67700400403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67700400403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33850200200 + 33850200201.

It is an arithmetic number, because the mean of its divisors is an integer number (33850200201).

Almost surely, 2^67700400401 is an apocalyptic number.

It is an amenable number.

67700400401 is a deficient number, since it is larger than the sum of its proper divisors (1).

67700400401 is an equidigital number, since it uses as much as digits as its factorization.

67700400401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

The spelling of 67700400401 in words is "sixty-seven billion, seven hundred million, four hundred thousand, four hundred one".