32117781438461 has 2 divisors, whose sum is σ = 32117781438462. Its totient is φ = 32117781438460.

The previous prime is 32117781438401. The next prime is 32117781438487. The reversal of 32117781438461 is 16483418771123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32007657015961 + 110124422500 = 5657531^2 + 331850^2 .

It is a cyclic number.

It is not a de Polignac number, because 32117781438461 - 2⁶ = 32117781438397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32117781438397 and 32117781438406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32117781438401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16058890719230 + 16058890719231.

It is an arithmetic number, because the mean of its divisors is an integer number (16058890719231).

Almost surely, 2^{32117781438461} is an apocalyptic number.

It is an amenable number.

32117781438461 is a deficient number, since it is larger than the sum of its proper divisors (1).

32117781438461 is an equidigital number, since it uses as much as digits as its factorization.

32117781438461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5419008, while the sum is 56.

The spelling of 32117781438461 in words is "thirty-two trillion, one hundred seventeen billion, seven hundred eighty-one million, four hundred thirty-eight thousand, four hundred sixty-one".