10920394178 has 4 divisors (see below), whose sum is σ = 16380591270. Its totient is φ = 5460197088.

The previous prime is 10920394109. The next prime is 10920394183. The reversal of 10920394178 is 87149302901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7139743009 + 3780651169 = 84497^2 + 61487^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2730098543 + ... + 2730098546.

Almost surely, 2^10920394178 is an apocalyptic number.

10920394178 is a deficient number, since it is larger than the sum of its proper divisors (5460197092).

10920394178 is an equidigital number, since it uses as much as digits as its factorization.

10920394178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460197091.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 10920394178 in words is "ten billion, nine hundred twenty million, three hundred ninety-four thousand, one hundred seventy-eight".