389362209247 has 16 divisors (see below), whose sum is σ = 427881081600. Its totient is φ = 351364515840.

The previous prime is 389362209193. The next prime is 389362209263. The reversal of 389362209247 is 742902263983.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-389362209247 is a prime.

It is a super-2 number, since 2×389362209247² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389362209347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12349279 + ... + 12380767.

It is an arithmetic number, because the mean of its divisors is an integer number (26742567600).

Almost surely, 2^389362209247 is an apocalyptic number.

389362209247 is a deficient number, since it is larger than the sum of its proper divisors (38518872353).

389362209247 is a wasteful number, since it uses less digits than its factorization.

389362209247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39726.

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 389362209247 in words is "three hundred eighty-nine billion, three hundred sixty-two million, two hundred nine thousand, two hundred forty-seven".