84617870153 has 2 divisors, whose sum is σ = 84617870154. Its totient is φ = 84617870152.

The previous prime is 84617870093. The next prime is 84617870171. The reversal of 84617870153 is 35107871648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82456271104 + 2161599049 = 287152^2 + 46493^2 .

It is a cyclic number.

It is not a de Polignac number, because 84617870153 - 2⁶ = 84617870089 is a prime.

It is not a weakly prime, because it can be changed into another prime (84617870053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42308935076 + 42308935077.

It is an arithmetic number, because the mean of its divisors is an integer number (42308935077).

Almost surely, 2^84617870153 is an apocalyptic number.

It is an amenable number.

84617870153 is a deficient number, since it is larger than the sum of its proper divisors (1).

84617870153 is an equidigital number, since it uses as much as digits as its factorization.

84617870153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 84617870153 in words is "eighty-four billion, six hundred seventeen million, eight hundred seventy thousand, one hundred fifty-three".