6697942641 has 24 divisors (see below), whose sum is σ = 10424144640. Its totient is φ = 4119784416.

The previous prime is 6697942639. The next prime is 6697942663. The reversal of 6697942641 is 1462497966.

It is a happy number.

It is not a de Polignac number, because 6697942641 - 2¹ = 6697942639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6697942541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 245250 + ... + 271188.

It is an arithmetic number, because the mean of its divisors is an integer number (434339360).

Almost surely, 2^6697942641 is an apocalyptic number.

It is an amenable number.

6697942641 is a deficient number, since it is larger than the sum of its proper divisors (3726201999).

6697942641 is a wasteful number, since it uses less digits than its factorization.

6697942641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28165 (or 28162 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 6697942641 is about 81840.9594335257. The cubic root of 6697942641 is about 1885.0106490450.

The spelling of 6697942641 in words is "six billion, six hundred ninety-seven million, nine hundred forty-two thousand, six hundred forty-one".