31419431729 has 8 divisors (see below), whose sum is σ = 35909069760. Its totient is φ = 26930080656.

The previous prime is 31419431717. The next prime is 31419431753. The reversal of 31419431729 is 92713491413.

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 31419431729 - 2⁴ = 31419431713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31419431729.

It is not an unprimeable number, because it can be changed into a prime (31419431779) 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, 273962 + ... + 371340.

It is an arithmetic number, because the mean of its divisors is an integer number (4488633720).

Almost surely, 2^31419431729 is an apocalyptic number.

It is an amenable number.

31419431729 is a deficient number, since it is larger than the sum of its proper divisors (4489638031).

31419431729 is an equidigital number, since it uses as much as digits as its factorization.

31419431729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143479.

The product of its digits is 163296, while the sum is 44.

The spelling of 31419431729 in words is "thirty-one billion, four hundred nineteen million, four hundred thirty-one thousand, seven hundred twenty-nine".