2258439216487 has 4 divisors (see below), whose sum is σ = 2258529785440. Its totient is φ = 2258348647536.

The previous prime is 2258439216463. The next prime is 2258439216497. The reversal of 2258439216487 is 7846129348522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2258439216487 - 2¹⁵ = 2258439183719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258439216497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45247062 + ... + 45296947.

It is an arithmetic number, because the mean of its divisors is an integer number (564632446360).

Almost surely, 2^{2258439216487} is an apocalyptic number.

2258439216487 is a deficient number, since it is larger than the sum of its proper divisors (90568953).

2258439216487 is an equidigital number, since it uses as much as digits as its factorization.

2258439216487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90568952.

The product of its digits is 46448640, while the sum is 61.

The spelling of 2258439216487 in words is "two trillion, two hundred fifty-eight billion, four hundred thirty-nine million, two hundred sixteen thousand, four hundred eighty-seven".