6178779042969 has 96 divisors (see below), whose sum is σ = 9387593564160. Its totient is φ = 3589741411200.

The previous prime is 6178779042967. The next prime is 6178779042973. The reversal of 6178779042969 is 9692409778716.

It is not a de Polignac number, because 6178779042969 - 2¹ = 6178779042967 is a prime.

It is a super-2 number, since 2×6178779042969² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6178779042969.

It is not an unprimeable number, because it can be changed into a prime (6178779042967) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3288332772 + ... + 3288334650.

It is an arithmetic number, because the mean of its divisors is an integer number (97787432960).

Almost surely, 2^{6178779042969} is an apocalyptic number.

It is an amenable number.

6178779042969 is a deficient number, since it is larger than the sum of its proper divisors (3208814521191).

6178779042969 is a wasteful number, since it uses less digits than its factorization.

6178779042969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483 (or 3440 counting only the distinct ones).

The product of its (nonzero) digits is 576108288, while the sum is 75.

The spelling of 6178779042969 in words is "six trillion, one hundred seventy-eight billion, seven hundred seventy-nine million, forty-two thousand, nine hundred sixty-nine".