31797144014 has 4 divisors (see below), whose sum is σ = 47695716024. Its totient is φ = 15898572006.

The previous prime is 31797143941. The next prime is 31797144019. The reversal of 31797144014 is 41044179713.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41044179713 = 65629 ⋅625397.

It is a super-2 number, since 2×31797144014² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31797144019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7949286002 + ... + 7949286005.

It is an arithmetic number, because the mean of its divisors is an integer number (11923929006).

Almost surely, 2^31797144014 is an apocalyptic number.

31797144014 is a deficient number, since it is larger than the sum of its proper divisors (15898572010).

31797144014 is a wasteful number, since it uses less digits than its factorization.

31797144014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15898572009.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 31797144014 in words is "thirty-one billion, seven hundred ninety-seven million, one hundred forty-four thousand, fourteen".