31712732450261 has 8 divisors (see below), whose sum is σ = 31726041400800. Its totient is φ = 31699424682288.

The previous prime is 31712732450251. The next prime is 31712732450299. The reversal of 31712732450261 is 16205423721713.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31712732450261 is a prime.

It is a super-4 number, since 4×31712732450261⁴ (a number of 55 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31712732450251) 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, 55553315 + ... + 56121263.

It is an arithmetic number, because the mean of its divisors is an integer number (3965755175100).

Almost surely, 2^{31712732450261} is an apocalyptic number.

It is an amenable number.

31712732450261 is a deficient number, since it is larger than the sum of its proper divisors (13308950539).

31712732450261 is a wasteful number, since it uses less digits than its factorization.

31712732450261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591283.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 31712732450261 in words is "thirty-one trillion, seven hundred twelve billion, seven hundred thirty-two million, four hundred fifty thousand, two hundred sixty-one".