920864444869464 has 128 divisors (see below), whose sum is σ = 2346983633433600. Its totient is φ = 301026715130880.

The previous prime is 920864444869433. The next prime is 920864444869513. The reversal of 920864444869464 is 464968444468029.

It is a super-2 number, since 2×920864444869464² (a number of 31 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 920864444869464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3055332054 + ... + 3055633434.

It is an arithmetic number, because the mean of its divisors is an integer number (18335809636200).

Almost surely, 2^{920864444869464} is an apocalyptic number.

It is an amenable number.

920864444869464 is an abundant number, since it is smaller than the sum of its proper divisors (1426119188564136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

920864444869464 is a wasteful number, since it uses less digits than its factorization.

920864444869464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311385 (or 311381 counting only the distinct ones).

The product of its (nonzero) digits is 9172942848, while the sum is 78.

The spelling of 920864444869464 in words is "nine hundred twenty trillion, eight hundred sixty-four billion, four hundred forty-four million, eight hundred sixty-nine thousand, four hundred sixty-four".