6429723813 has 8 divisors (see below), whose sum is σ = 9525516800. Its totient is φ = 4286482524.

The previous prime is 6429723793. The next prime is 6429723827. The reversal of 6429723813 is 3183279246.

It is not a de Polignac number, because 6429723813 - 2⁶ = 6429723749 is a prime.

It is a super-2 number, since 2×6429723813² = 82682696622918517938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6429723863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119068933 + ... + 119068986.

It is an arithmetic number, because the mean of its divisors is an integer number (1190689600).

Almost surely, 2^6429723813 is an apocalyptic number.

It is an amenable number.

6429723813 is a deficient number, since it is larger than the sum of its proper divisors (3095792987).

6429723813 is a wasteful number, since it uses less digits than its factorization.

6429723813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238137928 (or 238137922 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 6429723813 is about 80185.5586312149. The cubic root of 6429723813 is about 1859.5053809675.

The spelling of 6429723813 in words is "six billion, four hundred twenty-nine million, seven hundred twenty-three thousand, eight hundred thirteen".