6697861464 has 128 divisors (see below), whose sum is σ = 20017751040. Its totient is φ = 1825984512.

The previous prime is 6697861463. The next prime is 6697861481. The reversal of 6697861464 is 4641687966.

It is a super-2 number, since 2×6697861464² = 89722696381872446592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6697861463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1763952 + ... + 1767744.

It is an arithmetic number, because the mean of its divisors is an integer number (156388680).

Almost surely, 2^6697861464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6697861464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10008875520).

6697861464 is an abundant number, since it is smaller than the sum of its proper divisors (13319889576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6697861464 is a wasteful number, since it uses less digits than its factorization.

6697861464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4289 (or 4285 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 57.

The square root of 6697861464 is about 81840.4634884236. The cubic root of 6697861464 is about 1885.0030337649.

The spelling of 6697861464 in words is "six billion, six hundred ninety-seven million, eight hundred sixty-one thousand, four hundred sixty-four".