920967777129 has 8 divisors (see below), whose sum is σ = 1235778419200. Its totient is φ = 610067826576.

The previous prime is 920967777061. The next prime is 920967777139. The reversal of 920967777129 is 921777769029.

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

It is not a de Polignac number, because 920967777129 - 2²⁰ = 920966728553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 920967777129.

It is not an unprimeable number, because it can be changed into a prime (920967777139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977672329 + ... + 977673270.

It is an arithmetic number, because the mean of its divisors is an integer number (154472302400).

Almost surely, 2^920967777129 is an apocalyptic number.

It is an amenable number.

920967777129 is a deficient number, since it is larger than the sum of its proper divisors (314810642071).

920967777129 is a wasteful number, since it uses less digits than its factorization.

920967777129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955345759.

The product of its (nonzero) digits is 42007896, while the sum is 66.

The spelling of 920967777129 in words is "nine hundred twenty billion, nine hundred sixty-seven million, seven hundred seventy-seven thousand, one hundred twenty-nine".