989373213423 has 64 divisors (see below), whose sum is σ = 1821603409920. Its totient is φ = 517718739456.

The previous prime is 989373213403. The next prime is 989373213443. The reversal of 989373213423 is 324312373989.

989373213423 is a `hidden beast` number, since 98 + 93 + 7 + 32 + 13 + 423 = 666.

It is an interprime number because it is at equal distance from previous prime (989373213403) and next prime (989373213443).

It is not a de Polignac number, because 989373213423 - 2⁶ = 989373213359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 989373213423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989373213403) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4042311 + ... + 4280072.

It is an arithmetic number, because the mean of its divisors is an integer number (28462553280).

Almost surely, 2^989373213423 is an apocalyptic number.

989373213423 is a deficient number, since it is larger than the sum of its proper divisors (832230196497).

989373213423 is a wasteful number, since it uses less digits than its factorization.

989373213423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8322453 (or 8322447 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The spelling of 989373213423 in words is "nine hundred eighty-nine billion, three hundred seventy-three million, two hundred thirteen thousand, four hundred twenty-three".