31641016045 has 8 divisors (see below), whose sum is σ = 37988873496. Its totient is φ = 25299710016.

The previous prime is 31641016037. The next prime is 31641016049. The reversal of 31641016045 is 54061014613.

It can be written as a sum of positive squares in 4 ways, for example, as 13655792164 + 17985223881 = 116858^2 + 134109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31641016045 - 2³ = 31641016037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31641015998 and 31641016016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31641016049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1627222 + ... + 1646551.

It is an arithmetic number, because the mean of its divisors is an integer number (4748609187).

Almost surely, 2^31641016045 is an apocalyptic number.

It is an amenable number.

31641016045 is a deficient number, since it is larger than the sum of its proper divisors (6347857451).

31641016045 is a wasteful number, since it uses less digits than its factorization.

31641016045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275711.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 31641016045 in words is "thirty-one billion, six hundred forty-one million, sixteen thousand, forty-five".