921140550544 has 40 divisors (see below), whose sum is σ = 1817331228000. Its totient is φ = 452228034048.

The previous prime is 921140550529. The next prime is 921140550559. The reversal of 921140550544 is 445055041129.

It is an interprime number because it is at equal distance from previous prime (921140550529) and next prime (921140550559).

It is a super-3 number, since 3×921140550544³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 921140550497 and 921140550506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2187294 + ... + 2574205.

It is an arithmetic number, because the mean of its divisors is an integer number (45433280700).

Almost surely, 2^921140550544 is an apocalyptic number.

It is an amenable number.

921140550544 is a deficient number, since it is larger than the sum of its proper divisors (896190677456).

921140550544 is a wasteful number, since it uses less digits than its factorization.

921140550544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4761727 (or 4761721 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 921140550544 in words is "nine hundred twenty-one billion, one hundred forty million, five hundred fifty thousand, five hundred forty-four".