973939946221 has 8 divisors (see below), whose sum is σ = 1063574165088. Its totient is φ = 884488098000.

The previous prime is 973939946191. The next prime is 973939946279. The reversal of 973939946221 is 122649939379.

973939946221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 973939946221 - 2⁷ = 973939946093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (973934946221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45581490 + ... + 45602851.

It is an arithmetic number, because the mean of its divisors is an integer number (132946770636).

Almost surely, 2^973939946221 is an apocalyptic number.

It is an amenable number.

973939946221 is a deficient number, since it is larger than the sum of its proper divisors (89634218867).

973939946221 is a wasteful number, since it uses less digits than its factorization.

973939946221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91185323.

The product of its digits is 39680928, while the sum is 64.

The spelling of 973939946221 in words is "nine hundred seventy-three billion, nine hundred thirty-nine million, nine hundred forty-six thousand, two hundred twenty-one".