2126278294 has 16 divisors (see below), whose sum is σ = 3654829728. Its totient is φ = 908816832.

The previous prime is 2126278249. The next prime is 2126278331. The reversal of 2126278294 is 4928726212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2126278294.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198367 + ... + 208810.

It is an arithmetic number, because the mean of its divisors is an integer number (228426858).

Almost surely, 2^2126278294 is an apocalyptic number.

2126278294 is a deficient number, since it is larger than the sum of its proper divisors (1528551434).

2126278294 is a wasteful number, since it uses less digits than its factorization.

2126278294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407559.

The product of its digits is 193536, while the sum is 43.

The square root of 2126278294 is about 46111.5852470938. The cubic root of 2126278294 is about 1285.8985361119.

The spelling of 2126278294 in words is "two billion, one hundred twenty-six million, two hundred seventy-eight thousand, two hundred ninety-four".