920648807969 has 8 divisors (see below), whose sum is σ = 1013730549408. Its totient is φ = 829131465760.

The previous prime is 920648807929. The next prime is 920648807971. The reversal of 920648807969 is 969708846029.

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

It is a cyclic number.

It is not a de Polignac number, because 920648807969 - 2³⁶ = 851929331233 is a prime.

It is a super-2 number, since 2×920648807969² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 920648807899 and 920648807908.

It is not an unprimeable number, because it can be changed into a prime (920648807929) 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, 391098572 + ... + 391100925.

It is an arithmetic number, because the mean of its divisors is an integer number (126716318676).

Almost surely, 2^920648807969 is an apocalyptic number.

It is an amenable number.

920648807969 is a deficient number, since it is larger than the sum of its proper divisors (93081741439).

920648807969 is a wasteful number, since it uses less digits than its factorization.

920648807969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782199615.

The product of its (nonzero) digits is 94058496, while the sum is 68.

The spelling of 920648807969 in words is "nine hundred twenty billion, six hundred forty-eight million, eight hundred seven thousand, nine hundred sixty-nine".