789154956081 has 12 divisors (see below), whose sum is σ = 1189450948608. Its totient is φ = 503229247224.

The previous prime is 789154956067. The next prime is 789154956089. The reversal of 789154956081 is 180659451987.

789154956081 is a `hidden beast` number, since 7 + 8 + 9 + 1 + 5 + 495 + 60 + 81 = 666.

It is not a de Polignac number, because 789154956081 - 2⁶ = 789154956017 is a prime.

It is a super-2 number, since 2×789154956081² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (789154956089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1906171185 + ... + 1906171598.

It is an arithmetic number, because the mean of its divisors is an integer number (99120912384).

Almost surely, 2^789154956081 is an apocalyptic number.

It is an amenable number.

789154956081 is a deficient number, since it is larger than the sum of its proper divisors (400295992527).

789154956081 is a wasteful number, since it uses less digits than its factorization.

789154956081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812342812 (or 3812342809 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 63.

The spelling of 789154956081 in words is "seven hundred eighty-nine billion, one hundred fifty-four million, nine hundred fifty-six thousand, eighty-one".