6900940799 has 4 divisors (see below), whose sum is σ = 6988294560. Its totient is φ = 6813587040.

The previous prime is 6900940777. The next prime is 6900940817. The reversal of 6900940799 is 9970490096.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6900940799 - 2¹² = 6900936703 is a prime.

It is a super-2 number, since 2×6900940799² = 95245967822605516802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6900940799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6900940729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43676762 + ... + 43676919.

It is an arithmetic number, because the mean of its divisors is an integer number (1747073640).

Almost surely, 2^6900940799 is an apocalyptic number.

6900940799 is a deficient number, since it is larger than the sum of its proper divisors (87353761).

6900940799 is an equidigital number, since it uses as much as digits as its factorization.

6900940799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87353760.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The square root of 6900940799 is about 83071.9013806714. The cubic root of 6900940799 is about 1903.8647832816.

The spelling of 6900940799 in words is "six billion, nine hundred million, nine hundred forty thousand, seven hundred ninety-nine".