87829761999 has 32 divisors (see below), whose sum is σ = 138181570560. Its totient is φ = 48559449600.

The previous prime is 87829761989. The next prime is 87829762021. The reversal of 87829761999 is 99916792878.

It is not a de Polignac number, because 87829761999 - 2²⁴ = 87812984783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87829761999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87829761959) 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 in 31 ways as a sum of consecutive naturals, for example, 4070359 + ... + 4091879.

It is an arithmetic number, because the mean of its divisors is an integer number (4318174080).

Almost surely, 2^87829761999 is an apocalyptic number.

87829761999 is a deficient number, since it is larger than the sum of its proper divisors (50351808561).

87829761999 is a wasteful number, since it uses less digits than its factorization.

87829761999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27831.

The product of its digits is 246903552, while the sum is 75.

The spelling of 87829761999 in words is "eighty-seven billion, eight hundred twenty-nine million, seven hundred sixty-one thousand, nine hundred ninety-nine".