10920485229861 has 8 divisors (see below), whose sum is σ = 15326996813920. Its totient is φ = 6897148566192.

The previous prime is 10920485229851. The next prime is 10920485229947. The reversal of 10920485229861 is 16892258402901.

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

It is not a de Polignac number, because 10920485229861 - 2⁹ = 10920485229349 is a prime.

It is a super-2 number, since 2×10920485229861² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 191587460173 = 10920485229861 / (1 + 0 + 9 + 2 + 0 + 4 + 8 + 5 + 2 + 2 + 9 + 8 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10920485229851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95793730030 + ... + 95793730143.

It is an arithmetic number, because the mean of its divisors is an integer number (1915874601740).

Almost surely, 2^{10920485229861} is an apocalyptic number.

It is an amenable number.

10920485229861 is a deficient number, since it is larger than the sum of its proper divisors (4406511584059).

10920485229861 is a wasteful number, since it uses less digits than its factorization.

10920485229861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191587460195.

The product of its (nonzero) digits is 4976640, while the sum is 57.

The spelling of 10920485229861 in words is "ten trillion, nine hundred twenty billion, four hundred eighty-five million, two hundred twenty-nine thousand, eight hundred sixty-one".