2258736787 has 4 divisors (see below), whose sum is σ = 2331599296. Its totient is φ = 2185874280.

The previous prime is 2258736769. The next prime is 2258736797. The reversal of 2258736787 is 7876378522.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2258736787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2258736797) 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, 36431208 + ... + 36431269.

It is an arithmetic number, because the mean of its divisors is an integer number (582899824).

Almost surely, 2^2258736787 is an apocalyptic number.

2258736787 is a deficient number, since it is larger than the sum of its proper divisors (72862509).

2258736787 is an equidigital number, since it uses as much as digits as its factorization.

2258736787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72862508.

The product of its digits is 7902720, while the sum is 55.

The square root of 2258736787 is about 47526.1694963943. The cubic root of 2258736787 is about 1312.0645702020.

The spelling of 2258736787 in words is "two billion, two hundred fifty-eight million, seven hundred thirty-six thousand, seven hundred eighty-seven".