6918129797 has 16 divisors (see below), whose sum is σ = 7302785280. Its totient is φ = 6545717568.

The previous prime is 6918129791. The next prime is 6918129811. The reversal of 6918129797 is 7979218196.

It is a cyclic number.

It is not a de Polignac number, because 6918129797 - 2⁸ = 6918129541 is a prime.

It is a super-2 number, since 2×6918129797² = 95721039776278522418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6918129791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260354 + ... + 285692.

It is an arithmetic number, because the mean of its divisors is an integer number (456424080).

Almost surely, 2^6918129797 is an apocalyptic number.

It is an amenable number.

6918129797 is a deficient number, since it is larger than the sum of its proper divisors (384655483).

6918129797 is a wasteful number, since it uses less digits than its factorization.

6918129797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25580.

The product of its digits is 3429216, while the sum is 59.

The square root of 6918129797 is about 83175.2955931026. The cubic root of 6918129797 is about 1905.4442005095. Note that the first 3 decimals are identical.

The spelling of 6918129797 in words is "six billion, nine hundred eighteen million, one hundred twenty-nine thousand, seven hundred ninety-seven".