32405927564261 has 2 divisors, whose sum is σ = 32405927564262. Its totient is φ = 32405927564260.

The previous prime is 32405927564237. The next prime is 32405927564347. The reversal of 32405927564261 is 16246572950423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32343322520161 + 62605044100 = 5687119^2 + 250210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32405927564261 is a prime.

It is a super-2 number, since 2×32405927564261² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32405927564197 and 32405927564206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32405927564561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16202963782130 + 16202963782131.

It is an arithmetic number, because the mean of its divisors is an integer number (16202963782131).

Almost surely, 2^{32405927564261} is an apocalyptic number.

It is an amenable number.

32405927564261 is a deficient number, since it is larger than the sum of its proper divisors (1).

32405927564261 is an equidigital number, since it uses as much as digits as its factorization.

32405927564261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21772800, while the sum is 56.

The spelling of 32405927564261 in words is "thirty-two trillion, four hundred five billion, nine hundred twenty-seven million, five hundred sixty-four thousand, two hundred sixty-one".