2859520388173 has 2 divisors, whose sum is σ = 2859520388174. Its totient is φ = 2859520388172.

The previous prime is 2859520388161. The next prime is 2859520388243. The reversal of 2859520388173 is 3718830259582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2828629513609 + 30890874564 = 1681853^2 + 175758^2 .

It is a cyclic number.

It is not a de Polignac number, because 2859520388173 - 2⁵ = 2859520388141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2859520358173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1429760194086 + 1429760194087.

It is an arithmetic number, because the mean of its divisors is an integer number (1429760194087).

Almost surely, 2^{2859520388173} is an apocalyptic number.

It is an amenable number.

2859520388173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2859520388173 is an equidigital number, since it uses as much as digits as its factorization.

2859520388173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29030400, while the sum is 61.

The spelling of 2859520388173 in words is "two trillion, eight hundred fifty-nine billion, five hundred twenty million, three hundred eighty-eight thousand, one hundred seventy-three".