10947432978 has 24 divisors (see below), whose sum is σ = 23731207500. Its totient is φ = 3647333664.

The previous prime is 10947432959. The next prime is 10947432983. The reversal of 10947432978 is 87923474901.

It can be written as a sum of positive squares in 2 ways, for example, as 7326161649 + 3621271329 = 85593^2 + 60177^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113353 + ... + 186396.

Almost surely, 2^10947432978 is an apocalyptic number.

10947432978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10947432978 is an abundant number, since it is smaller than the sum of its proper divisors (12783774522).

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

10947432978 is a wasteful number, since it uses less digits than its factorization.

10947432978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301786 (or 301783 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 10947432978 in words is "ten billion, nine hundred forty-seven million, four hundred thirty-two thousand, nine hundred seventy-eight".