2128262894 has 8 divisors (see below), whose sum is σ = 3207524808. Its totient is φ = 1059087960.

The previous prime is 2128262893. The next prime is 2128262897. The reversal of 2128262894 is 4982628212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2128262893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2521217 + ... + 2522060.

It is an arithmetic number, because the mean of its divisors is an integer number (400940601).

Almost surely, 2^2128262894 is an apocalyptic number.

2128262894 is a deficient number, since it is larger than the sum of its proper divisors (1079261914).

2128262894 is a wasteful number, since it uses less digits than its factorization.

2128262894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5043490.

The product of its digits is 221184, while the sum is 44.

The square root of 2128262894 is about 46133.0997657864. The cubic root of 2128262894 is about 1286.2984838626.

The spelling of 2128262894 in words is "two billion, one hundred twenty-eight million, two hundred sixty-two thousand, eight hundred ninety-four".