6641531692 has 6 divisors (see below), whose sum is σ = 11622680468. Its totient is φ = 3320765844.

The previous prime is 6641531641. The next prime is 6641531693. The reversal of 6641531692 is 2961351466.

It is not an unprimeable number, because it can be changed into a prime (6641531693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830191458 + ... + 830191465.

Almost surely, 2^6641531692 is an apocalyptic number.

It is an amenable number.

6641531692 is a deficient number, since it is larger than the sum of its proper divisors (4981148776).

6641531692 is a wasteful number, since it uses less digits than its factorization.

6641531692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660382927 (or 1660382925 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 6641531692 is about 81495.5930833073. The cubic root of 6641531692 is about 1879.7037872681.

The spelling of 6641531692 in words is "six billion, six hundred forty-one million, five hundred thirty-one thousand, six hundred ninety-two".