6339780078 has 16 divisors (see below), whose sum is σ = 12974434176. Its totient is φ = 2064114360.

The previous prime is 6339780077. The next prime is 6339780107. The reversal of 6339780078 is 8700879336.

It is a super-2 number, since 2×6339780078² = 80385622874811372168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6339780078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6339780077) 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, 12286138 + ... + 12286653.

It is an arithmetic number, because the mean of its divisors is an integer number (810902136).

Almost surely, 2^6339780078 is an apocalyptic number.

6339780078 is an abundant number, since it is smaller than the sum of its proper divisors (6634654098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6339780078 is a wasteful number, since it uses less digits than its factorization.

6339780078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24572839.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The square root of 6339780078 is about 79622.7359364145. The cubic root of 6339780078 is about 1850.7939205532.

The spelling of 6339780078 in words is "six billion, three hundred thirty-nine million, seven hundred eighty thousand, seventy-eight".