631456002326 has 4 divisors (see below), whose sum is σ = 947184003492. Its totient is φ = 315728001162.

The previous prime is 631456002319. The next prime is 631456002329. The reversal of 631456002326 is 623200654136.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 631456002326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631456002329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157864000580 + ... + 157864000583.

It is an arithmetic number, because the mean of its divisors is an integer number (236796000873).

Almost surely, 2^631456002326 is an apocalyptic number.

631456002326 is a deficient number, since it is larger than the sum of its proper divisors (315728001166).

631456002326 is a wasteful number, since it uses less digits than its factorization.

631456002326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315728001165.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 631456002326 in words is "six hundred thirty-one billion, four hundred fifty-six million, two thousand, three hundred twenty-six".