181465801463 has 2 divisors, whose sum is σ = 181465801464. Its totient is φ = 181465801462.

The previous prime is 181465801417. The next prime is 181465801469. The reversal of 181465801463 is 364108564181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 181465801463 - 2¹² = 181465797367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (181465801469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90732900731 + 90732900732.

It is an arithmetic number, because the mean of its divisors is an integer number (90732900732).

Almost surely, 2^181465801463 is an apocalyptic number.

181465801463 is a deficient number, since it is larger than the sum of its proper divisors (1).

181465801463 is an equidigital number, since it uses as much as digits as its factorization.

181465801463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 181465801463 in words is "one hundred eighty-one billion, four hundred sixty-five million, eight hundred one thousand, four hundred sixty-three".