67378980316451 has 2 divisors, whose sum is σ = 67378980316452. Its totient is φ = 67378980316450.

The previous prime is 67378980316421. The next prime is 67378980316507. The reversal of 67378980316451 is 15461308987376.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67378980316451 - 2²² = 67378976122147 is a prime.

It is not a weakly prime, because it can be changed into another prime (67378980316421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33689490158225 + 33689490158226.

It is an arithmetic number, because the mean of its divisors is an integer number (33689490158226).

Almost surely, 2^{67378980316451} is an apocalyptic number.

67378980316451 is a deficient number, since it is larger than the sum of its proper divisors (1).

67378980316451 is an equidigital number, since it uses as much as digits as its factorization.

67378980316451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 182891520, while the sum is 68.

The spelling of 67378980316451 in words is "sixty-seven trillion, three hundred seventy-eight billion, nine hundred eighty million, three hundred sixteen thousand, four hundred fifty-one".