2158867710 has 96 divisors (see below), whose sum is σ = 5768249760. Its totient is φ = 559872000.

The previous prime is 2158867679. The next prime is 2158867717. The reversal of 2158867710 is 177688512.

It is a happy number.

2158867710 is a `hidden beast` number, since 2 + 1 + 588 + 67 + 7 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158867717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1478961 + ... + 1480419.

It is an arithmetic number, because the mean of its divisors is an integer number (60085935).

Almost surely, 2^2158867710 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2158867710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2884124880).

2158867710 is an abundant number, since it is smaller than the sum of its proper divisors (3609382050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2158867710 is a wasteful number, since it uses less digits than its factorization.

2158867710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914 (or 1911 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The square root of 2158867710 is about 46463.6170567897. The cubic root of 2158867710 is about 1292.4349000156.

It can be divided in two parts, 21588 and 67710, that added together give a palindrome (89298).

The spelling of 2158867710 in words is "two billion, one hundred fifty-eight million, eight hundred sixty-seven thousand, seven hundred ten".