389499129917 has 8 divisors (see below), whose sum is σ = 410162628480. Its totient is φ = 369146360880.

The previous prime is 389499129913. The next prime is 389499129937. The reversal of 389499129917 is 719921994983.

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 389499129917 - 2² = 389499129913 is a prime.

It is a super-2 number, since 2×389499129917² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389499129913) 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, 77679809 + ... + 77684822.

It is an arithmetic number, because the mean of its divisors is an integer number (51270328560).

Almost surely, 2^389499129917 is an apocalyptic number.

It is an amenable number.

389499129917 is a deficient number, since it is larger than the sum of its proper divisors (20663498563).

389499129917 is a wasteful number, since it uses less digits than its factorization.

389499129917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155364763.

The product of its digits is 79361856, while the sum is 71.

The spelling of 389499129917 in words is "three hundred eighty-nine billion, four hundred ninety-nine million, one hundred twenty-nine thousand, nine hundred seventeen".