81017401467 has 16 divisors (see below), whose sum is σ = 108950503680. Its totient is φ = 53549691552.

The previous prime is 81017401447. The next prime is 81017401489. The reversal of 81017401467 is 76410471018.

It is not a de Polignac number, because 81017401467 - 2¹⁴ = 81017385083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (81017401447) 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 in 15 ways as a sum of consecutive naturals, for example, 31093 + ... + 403734.

It is an arithmetic number, because the mean of its divisors is an integer number (6809406480).

Almost surely, 2^81017401467 is an apocalyptic number.

81017401467 is a deficient number, since it is larger than the sum of its proper divisors (27933102213).

81017401467 is a wasteful number, since it uses less digits than its factorization.

81017401467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435362.

The product of its (nonzero) digits is 37632, while the sum is 39.

The spelling of 81017401467 in words is "eighty-one billion, seventeen million, four hundred one thousand, four hundred sixty-seven".