84605427671055 has 32 divisors (see below), whose sum is σ = 143084610704640. Its totient is φ = 42570627909120.

The previous prime is 84605427670969. The next prime is 84605427671057. The reversal of 84605427671055 is 55017672450648.

It is not a de Polignac number, because 84605427671055 - 2²² = 84605423476751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84605427671055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84605427671057) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 615825817 + ... + 615963186.

It is an arithmetic number, because the mean of its divisors is an integer number (4471394084520).

Almost surely, 2^{84605427671055} is an apocalyptic number.

84605427671055 is a deficient number, since it is larger than the sum of its proper divisors (58479183033585).

84605427671055 is a wasteful number, since it uses less digits than its factorization.

84605427671055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231789271.

The product of its (nonzero) digits is 56448000, while the sum is 60.

The spelling of 84605427671055 in words is "eighty-four trillion, six hundred five billion, four hundred twenty-seven million, six hundred seventy-one thousand, fifty-five".