6309729478 has 8 divisors (see below), whose sum is σ = 10192639968. Its totient is φ = 2912182824.

The previous prime is 6309729457. The next prime is 6309729487. The reversal of 6309729478 is 8749279036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121340926 + ... + 121340977.

It is an arithmetic number, because the mean of its divisors is an integer number (1274079996).

Almost surely, 2^6309729478 is an apocalyptic number.

6309729478 is a deficient number, since it is larger than the sum of its proper divisors (3882910490).

6309729478 is a wasteful number, since it uses less digits than its factorization.

6309729478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242681918.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The square root of 6309729478 is about 79433.8056371467. The cubic root of 6309729478 is about 1847.8650294893.

The spelling of 6309729478 in words is "six billion, three hundred nine million, seven hundred twenty-nine thousand, four hundred seventy-eight".