32188907497 has 2 divisors, whose sum is σ = 32188907498. Its totient is φ = 32188907496.

The previous prime is 32188907467. The next prime is 32188907563. The reversal of 32188907497 is 79470988123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24118400601 + 8070506896 = 155301^2 + 89836^2 .

It is an emirp because it is prime and its reverse (79470988123) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32188907497 is a prime.

It is a super-2 number, since 2×32188907497² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (32188907407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16094453748 + 16094453749.

It is an arithmetic number, because the mean of its divisors is an integer number (16094453749).

Almost surely, 2^32188907497 is an apocalyptic number.

It is an amenable number.

32188907497 is a deficient number, since it is larger than the sum of its proper divisors (1).

32188907497 is an equidigital number, since it uses as much as digits as its factorization.

32188907497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 58.

The spelling of 32188907497 in words is "thirty-two billion, one hundred eighty-eight million, nine hundred seven thousand, four hundred ninety-seven".