8180122072389 has 32 divisors (see below), whose sum is σ = 11626391531520. Its totient is φ = 5098032621312.

The previous prime is 8180122072387. The next prime is 8180122072393. The reversal of 8180122072389 is 9832702210818.

It is not a de Polignac number, because 8180122072389 - 2¹ = 8180122072387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8180122072387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7359174 + ... + 8397480.

It is an arithmetic number, because the mean of its divisors is an integer number (363324735360).

Almost surely, 2^{8180122072389} is an apocalyptic number.

It is an amenable number.

8180122072389 is a deficient number, since it is larger than the sum of its proper divisors (3446269459131).

8180122072389 is a wasteful number, since it uses less digits than its factorization.

8180122072389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039369.

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 8180122072389 in words is "eight trillion, one hundred eighty billion, one hundred twenty-two million, seventy-two thousand, three hundred eighty-nine".