81027167064302 has 8 divisors (see below), whose sum is σ = 124505159147712. Its totient is φ = 39525447348400.

The previous prime is 81027167064287. The next prime is 81027167064307. The reversal of 81027167064302 is 20346076172018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81027167064307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494068091774 + ... + 494068091937.

It is an arithmetic number, because the mean of its divisors is an integer number (15563144893464).

Almost surely, 2^{81027167064302} is an apocalyptic number.

81027167064302 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

81027167064302 is a deficient number, since it is larger than the sum of its proper divisors (43477992083410).

81027167064302 is a wasteful number, since it uses less digits than its factorization.

81027167064302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988136183754.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 81027167064302 in words is "eighty-one trillion, twenty-seven billion, one hundred sixty-seven million, sixty-four thousand, three hundred two".