6945400723 has 2 divisors, whose sum is σ = 6945400724. Its totient is φ = 6945400722.

The previous prime is 6945400703. The next prime is 6945400753. The reversal of 6945400723 is 3270045496.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6945400723 - 2²¹ = 6943303571 is a prime.

It is not a weakly prime, because it can be changed into another prime (6945400703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3472700361 + 3472700362.

It is an arithmetic number, because the mean of its divisors is an integer number (3472700362).

Almost surely, 2^6945400723 is an apocalyptic number.

6945400723 is a deficient number, since it is larger than the sum of its proper divisors (1).

6945400723 is an equidigital number, since it uses as much as digits as its factorization.

6945400723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 6945400723 is about 83339.0708071550. The cubic root of 6945400723 is about 1907.9446401574.

The spelling of 6945400723 in words is "six billion, nine hundred forty-five million, four hundred thousand, seven hundred twenty-three".