20347669967 has 2 divisors, whose sum is σ = 20347669968. Its totient is φ = 20347669966.

The previous prime is 20347669957. The next prime is 20347670027. The reversal of 20347669967 is 76996674302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20347669967 - 2⁸ = 20347669711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20347669957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10173834983 + 10173834984.

It is an arithmetic number, because the mean of its divisors is an integer number (10173834984).

Almost surely, 2^20347669967 is an apocalyptic number.

20347669967 is a deficient number, since it is larger than the sum of its proper divisors (1).

20347669967 is an equidigital number, since it uses as much as digits as its factorization.

20347669967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20575296, while the sum is 59.

The spelling of 20347669967 in words is "twenty billion, three hundred forty-seven million, six hundred sixty-nine thousand, nine hundred sixty-seven".