31766430504018 has 24 divisors (see below), whose sum is σ = 73905573010032. Its totient is φ = 9076123001064.

The previous prime is 31766430503987. The next prime is 31766430504041. The reversal of 31766430504018 is 81040503466713.

It is a happy number.

It is a super-2 number, since 2×31766430504018² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54024541380 + ... + 54024541967.

It is an arithmetic number, because the mean of its divisors is an integer number (3079398875418).

Almost surely, 2^{31766430504018} is an apocalyptic number.

31766430504018 is an abundant number, since it is smaller than the sum of its proper divisors (42139142506014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31766430504018 is a wasteful number, since it uses less digits than its factorization.

31766430504018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108049083366 (or 108049083359 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 31766430504018 in words is "thirty-one trillion, seven hundred sixty-six billion, four hundred thirty million, five hundred four thousand, eighteen".