463168991 has 2 divisors, whose sum is σ = 463168992. Its totient is φ = 463168990.

The previous prime is 463168987. The next prime is 463168999. The reversal of 463168991 is 199861364.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 463168991 - 2² = 463168987 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (463168999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231584495 + 231584496.

It is an arithmetic number, because the mean of its divisors is an integer number (231584496).

Almost surely, 2^463168991 is an apocalyptic number.

463168991 is a deficient number, since it is larger than the sum of its proper divisors (1).

463168991 is an equidigital number, since it uses as much as digits as its factorization.

463168991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 47.

The square root of 463168991 is about 21521.3612720014. The cubic root of 463168991 is about 773.7128776091.

The spelling of 463168991 in words is "four hundred sixty-three million, one hundred sixty-eight thousand, nine hundred ninety-one".