969139056978 has 12 divisors (see below), whose sum is σ = 2099801290158. Its totient is φ = 323046352320.

The previous prime is 969139056967. The next prime is 969139057001. The reversal of 969139056978 is 879650931969.

969139056978 is a `hidden beast` number, since 96 + 91 + 390 + 5 + 69 + 7 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 685042594929 + 284096462049 = 827673^2 + 533007^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26920529343 + ... + 26920529378.

Almost surely, 2^969139056978 is an apocalyptic number.

969139056978 is an abundant number, since it is smaller than the sum of its proper divisors (1130662233180).

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

969139056978 is a wasteful number, since it uses less digits than its factorization.

969139056978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53841058729 (or 53841058726 counting only the distinct ones).

The product of its (nonzero) digits is 198404640, while the sum is 72.

The spelling of 969139056978 in words is "nine hundred sixty-nine billion, one hundred thirty-nine million, fifty-six thousand, nine hundred seventy-eight".