31326406433642 has 16 divisors (see below), whose sum is σ = 46997053040160. Its totient is φ = 15660722279472.

The previous prime is 31326406433611. The next prime is 31326406433657. The reversal of 31326406433642 is 24633460462313.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536721953 + ... + 536780315.

It is an arithmetic number, because the mean of its divisors is an integer number (2937315815010).

Almost surely, 2^{31326406433642} is an apocalyptic number.

31326406433642 is a deficient number, since it is larger than the sum of its proper divisors (15670646606518).

31326406433642 is a wasteful number, since it uses less digits than its factorization.

31326406433642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96277.

The product of its (nonzero) digits is 4478976, while the sum is 47.

Adding to 31326406433642 its reverse (24633460462313), we get a palindrome (55959866895955).

The spelling of 31326406433642 in words is "thirty-one trillion, three hundred twenty-six billion, four hundred six million, four hundred thirty-three thousand, six hundred forty-two".