10961804890 has 8 divisors (see below), whose sum is σ = 19731248820. Its totient is φ = 4384721952.

The previous prime is 10961804863. The next prime is 10961804921. The reversal of 10961804890 is 9840816901.

It can be written as a sum of positive squares in 2 ways, for example, as 10182222649 + 779582241 = 100907^2 + 27921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10961804890² (a number of 21 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 10961804890.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548090235 + ... + 548090254.

Almost surely, 2^10961804890 is an apocalyptic number.

10961804890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10961804890 is a deficient number, since it is larger than the sum of its proper divisors (8769443930).

10961804890 is a wasteful number, since it uses less digits than its factorization.

10961804890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096180496.

The product of its (nonzero) digits is 124416, while the sum is 46.

The spelling of 10961804890 in words is "ten billion, nine hundred sixty-one million, eight hundred four thousand, eight hundred ninety".