81470860063 has 2 divisors, whose sum is σ = 81470860064. Its totient is φ = 81470860062.

The previous prime is 81470860039. The next prime is 81470860103. The reversal of 81470860063 is 36006807418.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 81470860063 - 2²⁹ = 80933989151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (81470860033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40735430031 + 40735430032.

It is an arithmetic number, because the mean of its divisors is an integer number (40735430032).

Almost surely, 2^81470860063 is an apocalyptic number.

81470860063 is a deficient number, since it is larger than the sum of its proper divisors (1).

81470860063 is an equidigital number, since it uses as much as digits as its factorization.

81470860063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 81470860063 in words is "eighty-one billion, four hundred seventy million, eight hundred sixty thousand, sixty-three".