921798436674 has 32 divisors (see below), whose sum is σ = 1871416831680. Its totient is φ = 302630974272.

The previous prime is 921798436673. The next prime is 921798436709. The reversal of 921798436674 is 476634897129.

It is not an unprimeable number, because it can be changed into a prime (921798436673) 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, 2337252 + ... + 2703024.

It is an arithmetic number, because the mean of its divisors is an integer number (58481775990).

Almost surely, 2^921798436674 is an apocalyptic number.

921798436674 is an abundant number, since it is smaller than the sum of its proper divisors (949618395006).

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

921798436674 is a wasteful number, since it uses less digits than its factorization.

921798436674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372114.

The product of its digits is 109734912, while the sum is 66.

The spelling of 921798436674 in words is "nine hundred twenty-one billion, seven hundred ninety-eight million, four hundred thirty-six thousand, six hundred seventy-four".