2091964626 has 12 divisors (see below), whose sum is σ = 4532590062. Its totient is φ = 697321536.

The previous prime is 2091964601. The next prime is 2091964639. The reversal of 2091964626 is 6264691902.

2091964626 is a `hidden beast` number, since 2 + 0 + 9 + 19 + 6 + 4 + 626 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2058890625 + 33074001 = 45375^2 + 5751^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58110111 + ... + 58110146.

Almost surely, 2^2091964626 is an apocalyptic number.

2091964626 is an abundant number, since it is smaller than the sum of its proper divisors (2440625436).

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

2091964626 is a wasteful number, since it uses less digits than its factorization.

2091964626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116220265 (or 116220262 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 2091964626 is about 45737.9998032271. Note that the first 3 decimals coincide. The cubic root of 2091964626 is about 1278.9437546929.

The spelling of 2091964626 in words is "two billion, ninety-one million, nine hundred sixty-four thousand, six hundred twenty-six".