2153459826 has 48 divisors (see below), whose sum is σ = 5504398848. Its totient is φ = 595425600.

The previous prime is 2153459809. The next prime is 2153459827. The reversal of 2153459826 is 6289543512.

2153459826 is a `hidden beast` number, since 2 + 1 + 5 + 34 + 598 + 26 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2153459827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271755 + ... + 279566.

It is an arithmetic number, because the mean of its divisors is an integer number (114674976).

Almost surely, 2^2153459826 is an apocalyptic number.

2153459826 is an abundant number, since it is smaller than the sum of its proper divisors (3350939022).

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

2153459826 is a wasteful number, since it uses less digits than its factorization.

2153459826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551367 (or 551364 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 2153459826 is about 46405.3857434673. The cubic root of 2153459826 is about 1291.3548304138.

The spelling of 2153459826 in words is "two billion, one hundred fifty-three million, four hundred fifty-nine thousand, eight hundred twenty-six".