67617900863 has 2 divisors, whose sum is σ = 67617900864. Its totient is φ = 67617900862.

The previous prime is 67617900841. The next prime is 67617900881. The reversal of 67617900863 is 36800971676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67617900863 - 2¹² = 67617896767 is a prime.

It is a super-2 number, since 2×67617900863² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67617900563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33808950431 + 33808950432.

It is an arithmetic number, because the mean of its divisors is an integer number (33808950432).

Almost surely, 2^67617900863 is an apocalyptic number.

67617900863 is a deficient number, since it is larger than the sum of its proper divisors (1).

67617900863 is an equidigital number, since it uses as much as digits as its factorization.

67617900863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The spelling of 67617900863 in words is "sixty-seven billion, six hundred seventeen million, nine hundred thousand, eight hundred sixty-three".