389954439155 has 8 divisors (see below), whose sum is σ = 468112288272. Its totient is φ = 311852243808.

The previous prime is 389954439151. The next prime is 389954439223. The reversal of 389954439155 is 551934459983.

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 389954439155 - 2² = 389954439151 is a prime.

It is a super-2 number, since 2×389954439155² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389954439091 and 389954439100.

It is not an unprimeable number, because it can be changed into a prime (389954439151) 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, 13898024 + ... + 13926053.

It is an arithmetic number, because the mean of its divisors is an integer number (58514036034).

Almost surely, 2^389954439155 is an apocalyptic number.

389954439155 is a deficient number, since it is larger than the sum of its proper divisors (78157849117).

389954439155 is a wasteful number, since it uses less digits than its factorization.

389954439155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27826885.

The product of its digits is 104976000, while the sum is 65.

The spelling of 389954439155 in words is "three hundred eighty-nine billion, nine hundred fifty-four million, four hundred thirty-nine thousand, one hundred fifty-five".