81470860053 has 32 divisors (see below), whose sum is σ = 119644708992. Its totient is φ = 49309223040.

The previous prime is 81470860039. The next prime is 81470860063. The reversal of 81470860053 is 35006807418.

It is not a de Polignac number, because 81470860053 - 2⁵ = 81470860021 is a prime.

It is a super-2 number, since 2×81470860053² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 81470859987 and 81470860014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81470860033) 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 in 31 ways as a sum of consecutive naturals, for example, 3009225 + ... + 3036177.

It is an arithmetic number, because the mean of its divisors is an integer number (3738897156).

Almost surely, 2^81470860053 is an apocalyptic number.

It is an amenable number.

81470860053 is a deficient number, since it is larger than the sum of its proper divisors (38173848939).

81470860053 is a wasteful number, since it uses less digits than its factorization.

81470860053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27746 (or 27724 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 81470860053 in words is "eighty-one billion, four hundred seventy million, eight hundred sixty thousand, fifty-three".