31994646017162 has 16 divisors (see below), whose sum is σ = 49312200780360. Its totient is φ = 15557651923968.

The previous prime is 31994646017129. The next prime is 31994646017267. The reversal of 31994646017162 is 26171064649913.

It is a happy number.

It is a Cunningham number, because it is equal to 5656381²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 28629252098161 + 3365393919001 = 5350631^2 + 1834501^2 .

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, 101383103 + ... + 101698194.

Almost surely, 2^{31994646017162} is an apocalyptic number.

31994646017162 is a deficient number, since it is larger than the sum of its proper divisors (17317554763198).

31994646017162 is a wasteful number, since it uses less digits than its factorization.

31994646017162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203083465.

The product of its (nonzero) digits is 11757312, while the sum is 59.

The spelling of 31994646017162 in words is "thirty-one trillion, nine hundred ninety-four billion, six hundred forty-six million, seventeen thousand, one hundred sixty-two".