32156532493 has 2 divisors, whose sum is σ = 32156532494. Its totient is φ = 32156532492.

The previous prime is 32156532481. The next prime is 32156532503. The reversal of 32156532493 is 39423565123.

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., 31811576164 + 344956329 = 178358^2 + 18573^2 .

It is a cyclic number.

It is not a de Polignac number, because 32156532493 - 2²⁵ = 32122978061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32156532433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16078266246 + 16078266247.

It is an arithmetic number, because the mean of its divisors is an integer number (16078266247).

Almost surely, 2^32156532493 is an apocalyptic number.

It is an amenable number.

32156532493 is a deficient number, since it is larger than the sum of its proper divisors (1).

32156532493 is an equidigital number, since it uses as much as digits as its factorization.

32156532493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 43.

The spelling of 32156532493 in words is "thirty-two billion, one hundred fifty-six million, five hundred thirty-two thousand, four hundred ninety-three".