67618920976153 has 2 divisors, whose sum is σ = 67618920976154. Its totient is φ = 67618920976152.

The previous prime is 67618920976111. The next prime is 67618920976163. The reversal of 67618920976153 is 35167902981676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67541654767129 + 77266209024 = 8218373^2 + 277968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67618920976153 is a prime.

It is not a weakly prime, because it can be changed into another prime (67618920976163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33809460488076 + 33809460488077.

It is an arithmetic number, because the mean of its divisors is an integer number (33809460488077).

Almost surely, 2^{67618920976153} is an apocalyptic number.

It is an amenable number.

67618920976153 is a deficient number, since it is larger than the sum of its proper divisors (1).

67618920976153 is an equidigital number, since it uses as much as digits as its factorization.

67618920976153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 205752960, while the sum is 70.

The spelling of 67618920976153 in words is "sixty-seven trillion, six hundred eighteen billion, nine hundred twenty million, nine hundred seventy-six thousand, one hundred fifty-three".