2196771626 has 32 divisors (see below), whose sum is σ = 3895478400. Its totient is φ = 928555488.

The previous prime is 2196771623. The next prime is 2196771649. The reversal of 2196771626 is 6261776912.

It is a hoax number, since the sum of its digits (47) 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 (2196771623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28145 + ... + 72011.

It is an arithmetic number, because the mean of its divisors is an integer number (121733700).

Almost surely, 2^2196771626 is an apocalyptic number.

2196771626 is a deficient number, since it is larger than the sum of its proper divisors (1698706774).

2196771626 is an equidigital number, since it uses as much as digits as its factorization.

2196771626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43963 (or 43949 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 2196771626 is about 46869.7303811319. The cubic root of 2196771626 is about 1299.9549542577.

The spelling of 2196771626 in words is "two billion, one hundred ninety-six million, seven hundred seventy-one thousand, six hundred twenty-six".