1641426812 has 12 divisors (see below), whose sum is σ = 2965158336. Its totient is φ = 794238720.

The previous prime is 1641426797. The next prime is 1641426817. The reversal of 1641426812 is 2186241461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641426817) 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, 6618533 + ... + 6618780.

It is an arithmetic number, because the mean of its divisors is an integer number (247096528).

Almost surely, 2^1641426812 is an apocalyptic number.

It is an amenable number.

1641426812 is a deficient number, since it is larger than the sum of its proper divisors (1323731524).

1641426812 is a wasteful number, since it uses less digits than its factorization.

1641426812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13237348 (or 13237346 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 1641426812 is about 40514.5259382360. The cubic root of 1641426812 is about 1179.6156011150.

The spelling of 1641426812 in words is "one billion, six hundred forty-one million, four hundred twenty-six thousand, eight hundred twelve".