6840690736907 has 4 divisors (see below), whose sum is σ = 6856489099320. Its totient is φ = 6824892374496.

The previous prime is 6840690736883. The next prime is 6840690736909. The reversal of 6840690736907 is 7096370960486.

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 6840690736907 - 2⁶ = 6840690736843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6840690736909) 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, 7899180557 + ... + 7899181422.

It is an arithmetic number, because the mean of its divisors is an integer number (1714122274830).

Almost surely, 2^{6840690736907} is an apocalyptic number.

6840690736907 is a deficient number, since it is larger than the sum of its proper divisors (15798362413).

6840690736907 is a wasteful number, since it uses less digits than its factorization.

6840690736907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15798362412.

The product of its (nonzero) digits is 82301184, while the sum is 65.

The spelling of 6840690736907 in words is "six trillion, eight hundred forty billion, six hundred ninety million, seven hundred thirty-six thousand, nine hundred seven".