31774603489 has 4 divisors (see below), whose sum is σ = 32549593860. Its totient is φ = 30999613120.

The previous prime is 31774603463. The next prime is 31774603519. The reversal of 31774603489 is 98430647713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98430647713 = 218641 ⋅450193.

It can be written as a sum of positive squares in 2 ways, for example, as 925193889 + 30849409600 = 30417^2 + 175640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31774603489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31774603439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387495124 + ... + 387495205.

It is an arithmetic number, because the mean of its divisors is an integer number (8137398465).

Almost surely, 2^31774603489 is an apocalyptic number.

It is an amenable number.

31774603489 is a deficient number, since it is larger than the sum of its proper divisors (774990371).

31774603489 is an equidigital number, since it uses as much as digits as its factorization.

31774603489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774990370.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 31774603489 in words is "thirty-one billion, seven hundred seventy-four million, six hundred three thousand, four hundred eighty-nine".