921163334434 has 32 divisors (see below), whose sum is σ = 1647908188416. Its totient is φ = 377593877760.

The previous prime is 921163334431. The next prime is 921163334447. The reversal of 921163334434 is 434433361129.

It is not an unprimeable number, because it can be changed into a prime (921163334431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5023614 + ... + 5203750.

It is an arithmetic number, because the mean of its divisors is an integer number (51497130888).

Almost surely, 2^921163334434 is an apocalyptic number.

921163334434 is a deficient number, since it is larger than the sum of its proper divisors (726744853982).

921163334434 is a wasteful number, since it uses less digits than its factorization.

921163334434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196050.

The product of its digits is 559872, while the sum is 43.

The spelling of 921163334434 in words is "nine hundred twenty-one billion, one hundred sixty-three million, three hundred thirty-four thousand, four hundred thirty-four".