31413907509 has 8 divisors (see below), whose sum is σ = 41961784800. Its totient is φ = 20904317616.

The previous prime is 31413907501. The next prime is 31413907519. The reversal of 31413907509 is 90570931413.

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

It is not a de Polignac number, because 31413907509 - 2³ = 31413907501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31413907501) 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, 9569934 + ... + 9573215.

It is an arithmetic number, because the mean of its divisors is an integer number (5245223100).

Almost surely, 2^31413907509 is an apocalyptic number.

It is an amenable number.

31413907509 is a deficient number, since it is larger than the sum of its proper divisors (10547877291).

31413907509 is a wasteful number, since it uses less digits than its factorization.

31413907509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19143699.

The product of its (nonzero) digits is 102060, while the sum is 42.

The spelling of 31413907509 in words is "thirty-one billion, four hundred thirteen million, nine hundred seven thousand, five hundred nine".