2133997726 has 48 divisors (see below), whose sum is σ = 3998395872. Its totient is φ = 848601600.

The previous prime is 2133997721. The next prime is 2133997739. The reversal of 2133997726 is 6277993312.

It is a super-3 number, since 3×2133997726³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 2133997726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133997721) 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, 109266 + ... + 127306.

It is an arithmetic number, because the mean of its divisors is an integer number (83299914).

Almost surely, 2^2133997726 is an apocalyptic number.

2133997726 is a deficient number, since it is larger than the sum of its proper divisors (1864398146).

2133997726 is a wasteful number, since it uses less digits than its factorization.

2133997726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18145 (or 18138 counting only the distinct ones).

The product of its digits is 857304, while the sum is 49.

The square root of 2133997726 is about 46195.2132368712. The cubic root of 2133997726 is about 1287.4528039507.

The spelling of 2133997726 in words is "two billion, one hundred thirty-three million, nine hundred ninety-seven thousand, seven hundred twenty-six".