389494101709 has 4 divisors (see below), whose sum is σ = 397781210304. Its totient is φ = 381206993116.

The previous prime is 389494101701. The next prime is 389494101719. The reversal of 389494101709 is 907101494983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 907101494983 = 131 ⋅6924438893.

It is a cyclic number.

It is not a de Polignac number, because 389494101709 - 2³ = 389494101701 is a prime.

It is a super-2 number, since 2×389494101709² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389494101709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389494101701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4143554227 + ... + 4143554320.

It is an arithmetic number, because the mean of its divisors is an integer number (99445302576).

Almost surely, 2^389494101709 is an apocalyptic number.

It is an amenable number.

389494101709 is a deficient number, since it is larger than the sum of its proper divisors (8287108595).

389494101709 is an equidigital number, since it uses as much as digits as its factorization.

389494101709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8287108594.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 389494101709 in words is "three hundred eighty-nine billion, four hundred ninety-four million, one hundred one thousand, seven hundred nine".