81470860055 has 24 divisors (see below), whose sum is σ = 105905991312. Its totient is φ = 60139183104.

The previous prime is 81470860039. The next prime is 81470860063. The reversal of 81470860055 is 55006807418.

It is a happy number.

It is not a de Polignac number, because 81470860055 - 2⁴ = 81470860039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 81470859988 and 81470860015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2269607 + ... + 2305223.

It is an arithmetic number, because the mean of its divisors is an integer number (4412749638).

Almost surely, 2^81470860055 is an apocalyptic number.

81470860055 is a deficient number, since it is larger than the sum of its proper divisors (24435131257).

81470860055 is a wasteful number, since it uses less digits than its factorization.

81470860055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38355 (or 38342 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 81470860055 in words is "eighty-one billion, four hundred seventy million, eight hundred sixty thousand, fifty-five".