87524263993 has 2 divisors, whose sum is σ = 87524263994. Its totient is φ = 87524263992.

The previous prime is 87524263987. The next prime is 87524264039. The reversal of 87524263993 is 39936242578.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87283020969 + 241243024 = 295437^2 + 15532^2 .

It is a cyclic number.

It is not a de Polignac number, because 87524263993 - 2²⁵ = 87490709561 is a prime.

It is not a weakly prime, because it can be changed into another prime (87524263093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43762131996 + 43762131997.

It is an arithmetic number, because the mean of its divisors is an integer number (43762131997).

Almost surely, 2^87524263993 is an apocalyptic number.

It is an amenable number.

87524263993 is a deficient number, since it is larger than the sum of its proper divisors (1).

87524263993 is an equidigital number, since it uses as much as digits as its factorization.

87524263993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 58.

The spelling of 87524263993 in words is "eighty-seven billion, five hundred twenty-four million, two hundred sixty-three thousand, nine hundred ninety-three".