6900640069 has 8 divisors (see below), whose sum is σ = 6998146560. Its totient is φ = 6803706000.

The previous prime is 6900640057. The next prime is 6900640099. The reversal of 6900640069 is 9600460096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6900640069 - 2¹¹ = 6900638021 is a prime.

It is a super-2 number, since 2×6900640069² = 95237666723776649522, 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 (6900640099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118797 + ... + 167074.

It is an arithmetic number, because the mean of its divisors is an integer number (874768320).

Almost surely, 2^6900640069 is an apocalyptic number.

It is an amenable number.

6900640069 is a deficient number, since it is larger than the sum of its proper divisors (97506491).

6900640069 is a wasteful number, since it uses less digits than its factorization.

6900640069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286211.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 6900640069 is about 83070.0913024658. The cubic root of 6900640069 is about 1903.8371272663.

The spelling of 6900640069 in words is "six billion, nine hundred million, six hundred forty thousand, sixty-nine".