6945693651 has 48 divisors (see below), whose sum is σ = 11184052320. Its totient is φ = 4258275840.

The previous prime is 6945693631. The next prime is 6945693653. The reversal of 6945693651 is 1563965496.

It is not a de Polignac number, because 6945693651 - 2¹⁷ = 6945562579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6945693653) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1279495 + ... + 1284911.

It is an arithmetic number, because the mean of its divisors is an integer number (233001090).

Almost surely, 2^6945693651 is an apocalyptic number.

6945693651 is a deficient number, since it is larger than the sum of its proper divisors (4238358669).

6945693651 is a wasteful number, since it uses less digits than its factorization.

6945693651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5733 (or 5714 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 54.

The square root of 6945693651 is about 83340.8282356253. The cubic root of 6945693651 is about 1907.9714628262.

The spelling of 6945693651 in words is "six billion, nine hundred forty-five million, six hundred ninety-three thousand, six hundred fifty-one".