31454672509 has 8 divisors (see below), whose sum is σ = 34429579352. Its totient is φ = 28559096640.

The previous prime is 31454672507. The next prime is 31454672521. The reversal of 31454672509 is 90527645413.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 177688900 + 31276983609 = 13330^2 + 176853^2 .

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 31454672509 - 2¹ = 31454672507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31454672507) 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, 19831914 + ... + 19833499.

It is an arithmetic number, because the mean of its divisors is an integer number (4303697419).

Almost surely, 2^31454672509 is an apocalyptic number.

It is an amenable number.

31454672509 is a deficient number, since it is larger than the sum of its proper divisors (2974906843).

31454672509 is a wasteful number, since it uses less digits than its factorization.

31454672509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39665487.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 31454672509 in words is "thirty-one billion, four hundred fifty-four million, six hundred seventy-two thousand, five hundred nine".