789993321221040 has 80 divisors (see below), whose sum is σ = 2459767751002368. Its totient is φ = 209736846500608.

The previous prime is 789993321220973. The next prime is 789993321221047. The reversal of 789993321221040 is 40122123399987.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (789993321221047) 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, 7250251332 + ... + 7250360291.

Almost surely, 2^{789993321221040} is an apocalyptic number.

It is an amenable number.

789993321221040 is an abundant number, since it is smaller than the sum of its proper divisors (1669774429781328).

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

789993321221040 is a wasteful number, since it uses less digits than its factorization.

789993321221040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14500611866 (or 14500611860 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 60.

The spelling of 789993321221040 in words is "seven hundred eighty-nine trillion, nine hundred ninety-three billion, three hundred twenty-one million, two hundred twenty-one thousand, forty".