87537873433 has 2 divisors, whose sum is σ = 87537873434. Its totient is φ = 87537873432.

The previous prime is 87537873419. The next prime is 87537873463. The reversal of 87537873433 is 33437873578.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87537873424 + 9 = 295868^2 + 3^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87537873433 is a prime.

It is not a weakly prime, because it can be changed into another prime (87537873463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43768936716 + 43768936717.

It is an arithmetic number, because the mean of its divisors is an integer number (43768936717).

Almost surely, 2^87537873433 is an apocalyptic number.

It is an amenable number.

87537873433 is a deficient number, since it is larger than the sum of its proper divisors (1).

87537873433 is an equidigital number, since it uses as much as digits as its factorization.

87537873433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35562240, while the sum is 58.

The spelling of 87537873433 in words is "eighty-seven billion, five hundred thirty-seven million, eight hundred seventy-three thousand, four hundred thirty-three".