32508478477 has 2 divisors, whose sum is σ = 32508478478. Its totient is φ = 32508478476.

The previous prime is 32508478451. The next prime is 32508478517. The reversal of 32508478477 is 77487480523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21329434116 + 11179044361 = 146046^2 + 105731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32508478477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32508478427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16254239238 + 16254239239.

It is an arithmetic number, because the mean of its divisors is an integer number (16254239239).

Almost surely, 2^32508478477 is an apocalyptic number.

It is an amenable number.

32508478477 is a deficient number, since it is larger than the sum of its proper divisors (1).

32508478477 is an equidigital number, since it uses as much as digits as its factorization.

32508478477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10536960, while the sum is 55.

The spelling of 32508478477 in words is "thirty-two billion, five hundred eight million, four hundred seventy-eight thousand, four hundred seventy-seven".