389499497673 has 48 divisors (see below), whose sum is σ = 615060606720. Its totient is φ = 217790749440.

The previous prime is 389499497633. The next prime is 389499497707. The reversal of 389499497673 is 376794994983.

It is not a de Polignac number, because 389499497673 - 2⁹ = 389499497161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389499497603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9715293 + ... + 9755301.

It is an arithmetic number, because the mean of its divisors is an integer number (12813762640).

Almost surely, 2^389499497673 is an apocalyptic number.

389499497673 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

389499497673 is a deficient number, since it is larger than the sum of its proper divisors (225561109047).

389499497673 is a wasteful number, since it uses less digits than its factorization.

389499497673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42110 (or 42099 counting only the distinct ones).

The product of its digits is 2222131968, while the sum is 78.

The spelling of 389499497673 in words is "three hundred eighty-nine billion, four hundred ninety-nine million, four hundred ninety-seven thousand, six hundred seventy-three".