1641642712 has 32 divisors (see below), whose sum is σ = 3247311600. Its totient is φ = 775885824.

The previous prime is 1641642707. The next prime is 1641642713. The reversal of 1641642712 is 2172461461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641642713) by changing a digit.

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, 57648 + ... + 81280.

Almost surely, 2^1641642712 is an apocalyptic number.

It is an amenable number.

1641642712 is a deficient number, since it is larger than the sum of its proper divisors (1605668888).

1641642712 is a wasteful number, since it uses less digits than its factorization.

1641642712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24115 (or 24111 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 1641642712 is about 40517.1903270698. The cubic root of 1641642712 is about 1179.6673178777.

The spelling of 1641642712 in words is "one billion, six hundred forty-one million, six hundred forty-two thousand, seven hundred twelve".