6965404681 has 3 divisors (see below), whose sum is σ = 6965488141. Its totient is φ = 6965321222.

The previous prime is 6965404651. The next prime is 6965404687. The reversal of 6965404681 is 1864045696.

The square root of 6965404681 is 83459.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 6965404681 - 2¹³ = 6965396489 is a prime.

It is a super-2 number, since 2×6965404681² = 97033724740193423522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6965404687) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 41730 + ... + 125188.

Almost surely, 2^6965404681 is an apocalyptic number.

6965404681 is the 83459-th square number.

6965404681 is the 41730-th centered octagonal number.

It is an amenable number.

6965404681 is a deficient number, since it is larger than the sum of its proper divisors (83460).

6965404681 is an frugal number, since it uses more digits than its factorization.

6965404681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166918 (or 83459 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The cubic root of 6965404681 is about 1909.7746214882.

Multiplying 6965404681 by its sum of digits (49), we get a square (341304829369 = 584213²).

The spelling of 6965404681 in words is "six billion, nine hundred sixty-five million, four hundred four thousand, six hundred eighty-one".