1641692012 has 24 divisors (see below), whose sum is σ = 2967281856. Its totient is φ = 794254608.

The previous prime is 1641691937. The next prime is 1641692027. The reversal of 1641692012 is 2102961461.

It is a self number, because there is not a number n which added to its sum of digits gives 1641692012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26198 + ... + 63005.

It is an arithmetic number, because the mean of its divisors is an integer number (123636744).

Almost surely, 2^1641692012 is an apocalyptic number.

It is an amenable number.

1641692012 is a deficient number, since it is larger than the sum of its proper divisors (1325589844).

1641692012 is a wasteful number, since it uses less digits than its factorization.

1641692012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89357 (or 89355 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1641692012 is about 40517.7987062476. The cubic root of 1641692012 is about 1179.6791265813.

The spelling of 1641692012 in words is "one billion, six hundred forty-one million, six hundred ninety-two thousand, twelve".