2153147718 has 64 divisors (see below), whose sum is σ = 4572739584. Its totient is φ = 674784000.

The previous prime is 2153147707. The next prime is 2153147723. The reversal of 2153147718 is 8177413512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2523780 + ... + 2524632.

It is an arithmetic number, because the mean of its divisors is an integer number (71449056).

Almost surely, 2^2153147718 is an apocalyptic number.

2153147718 is an abundant number, since it is smaller than the sum of its proper divisors (2419591866).

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

2153147718 is a wasteful number, since it uses less digits than its factorization.

2153147718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261.

The product of its digits is 47040, while the sum is 39.

The square root of 2153147718 is about 46402.0227791850. The cubic root of 2153147718 is about 1291.2924406350.

The spelling of 2153147718 in words is "two billion, one hundred fifty-three million, one hundred forty-seven thousand, seven hundred eighteen".