6723142477 has 2 divisors, whose sum is σ = 6723142478. Its totient is φ = 6723142476.

The previous prime is 6723142427. The next prime is 6723142549. The reversal of 6723142477 is 7742413276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5304791556 + 1418350921 = 72834^2 + 37661^2 .

It is a cyclic number.

It is not a de Polignac number, because 6723142477 - 2¹⁵ = 6723109709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6723142427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3361571238 + 3361571239.

It is an arithmetic number, because the mean of its divisors is an integer number (3361571239).

Almost surely, 2^6723142477 is an apocalyptic number.

It is an amenable number.

6723142477 is a deficient number, since it is larger than the sum of its proper divisors (1).

6723142477 is an equidigital number, since it uses as much as digits as its factorization.

6723142477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 43.

The square root of 6723142477 is about 81994.7710344995. The cubic root of 6723142477 is about 1887.3716979701.

The spelling of 6723142477 in words is "six billion, seven hundred twenty-three million, one hundred forty-two thousand, four hundred seventy-seven".