984523551431 has 4 divisors (see below), whose sum is σ = 1125169773072. Its totient is φ = 843877329792.

The previous prime is 984523551413. The next prime is 984523551463. The reversal of 984523551431 is 134155325489.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 984523551431 - 2¹⁸ = 984523289287 is a prime.

It is a super-2 number, since 2×984523551431² (a number of 25 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 984523551431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (984523551631) 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, 70323110810 + ... + 70323110823.

It is an arithmetic number, because the mean of its divisors is an integer number (281292443268).

Almost surely, 2^984523551431 is an apocalyptic number.

984523551431 is a deficient number, since it is larger than the sum of its proper divisors (140646221641).

984523551431 is a wasteful number, since it uses less digits than its factorization.

984523551431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140646221640.

The product of its digits is 2592000, while the sum is 50.

The spelling of 984523551431 in words is "nine hundred eighty-four billion, five hundred twenty-three million, five hundred fifty-one thousand, four hundred thirty-one".