389924064722 has 8 divisors (see below), whose sum is σ = 599151611772. Its totient is φ = 190206860800.

The previous prime is 389924064709. The next prime is 389924064749. The reversal of 389924064722 is 227460429983.

It is a Cunningham number, because it is equal to 624439²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 389924064721 + 1 = 624439^2 + 1^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2377585679 + ... + 2377585842.

Almost surely, 2^389924064722 is an apocalyptic number.

389924064722 is a deficient number, since it is larger than the sum of its proper divisors (209227547050).

389924064722 is a wasteful number, since it uses less digits than its factorization.

389924064722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755171564.

The product of its (nonzero) digits is 10450944, while the sum is 56.

The spelling of 389924064722 in words is "three hundred eighty-nine billion, nine hundred twenty-four million, sixty-four thousand, seven hundred twenty-two".