87563980799 has 2 divisors, whose sum is σ = 87563980800. Its totient is φ = 87563980798.

The previous prime is 87563980789. The next prime is 87563980831. The reversal of 87563980799 is 99708936578.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87563980799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87563980759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43781990399 + 43781990400.

It is an arithmetic number, because the mean of its divisors is an integer number (43781990400).

Almost surely, 2^87563980799 is an apocalyptic number.

87563980799 is a deficient number, since it is larger than the sum of its proper divisors (1).

87563980799 is an equidigital number, since it uses as much as digits as its factorization.

87563980799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 205752960, while the sum is 71.

The spelling of 87563980799 in words is "eighty-seven billion, five hundred sixty-three million, nine hundred eighty thousand, seven hundred ninety-nine".