2158653914 has 32 divisors (see below), whose sum is σ = 3581832960. Its totient is φ = 970497792.

The previous prime is 2158653899. The next prime is 2158653919. The reversal of 2158653914 is 4193568512.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2158653919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1205732 + ... + 1207520.

It is an arithmetic number, because the mean of its divisors is an integer number (111932280).

Almost surely, 2^2158653914 is an apocalyptic number.

2158653914 is a deficient number, since it is larger than the sum of its proper divisors (1423179046).

2158653914 is a wasteful number, since it uses less digits than its factorization.

2158653914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374.

The product of its digits is 259200, while the sum is 44.

The square root of 2158653914 is about 46461.3163179865. The cubic root of 2158653914 is about 1292.3922346664.

The spelling of 2158653914 in words is "two billion, one hundred fifty-eight million, six hundred fifty-three thousand, nine hundred fourteen".