921090052106 has 32 divisors (see below), whose sum is σ = 1654274998272. Its totient is φ = 376317128880.

The previous prime is 921090052093. The next prime is 921090052109. The reversal of 921090052106 is 601250090129.

921090052106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (921090052109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15809186 + ... + 15867341.

It is an arithmetic number, because the mean of its divisors is an integer number (51696093696).

Almost surely, 2^921090052106 is an apocalyptic number.

921090052106 is a deficient number, since it is larger than the sum of its proper divisors (733184946166).

921090052106 is a wasteful number, since it uses less digits than its factorization.

921090052106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31676634.

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 921090052106 in words is "nine hundred twenty-one billion, ninety million, fifty-two thousand, one hundred six".