63870020650067 has 2 divisors, whose sum is σ = 63870020650068. Its totient is φ = 63870020650066.

The previous prime is 63870020650039. The next prime is 63870020650103. The reversal of 63870020650067 is 76005602007836.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63870020650067 is a prime.

It is a super-3 number, since 3×63870020650067³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63870020649997 and 63870020650024.

It is not a weakly prime, because it can be changed into another prime (63870020650867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31935010325033 + 31935010325034.

It is an arithmetic number, because the mean of its divisors is an integer number (31935010325034).

Almost surely, 2^{63870020650067} is an apocalyptic number.

63870020650067 is a deficient number, since it is larger than the sum of its proper divisors (1).

63870020650067 is an equidigital number, since it uses as much as digits as its factorization.

63870020650067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 63870020650067 in words is "sixty-three trillion, eight hundred seventy billion, twenty million, six hundred fifty thousand, sixty-seven".