2153388826 has 48 divisors (see below), whose sum is σ = 3531184200. Its totient is φ = 983975040.

The previous prime is 2153388791. The next prime is 2153388829. The reversal of 2153388826 is 6288833512.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1771147225 + 382241601 = 42085^2 + 19551^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2153388829) 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, 3980116 + ... + 3980656.

Almost surely, 2^2153388826 is an apocalyptic number.

2153388826 is a deficient number, since it is larger than the sum of its proper divisors (1377795374).

2153388826 is a wasteful number, since it uses less digits than its factorization.

2153388826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767 (or 748 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 2153388826 is about 46404.6207397496. The cubic root of 2153388826 is about 1291.3406381824.

The spelling of 2153388826 in words is "two billion, one hundred fifty-three million, three hundred eighty-eight thousand, eight hundred twenty-six".