87499838399 has 8 divisors (see below), whose sum is σ = 88309235520. Its totient is φ = 86690562336.

The previous prime is 87499838357. The next prime is 87499838401. The reversal of 87499838399 is 99383899478.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87499838399 is a prime.

It is a super-2 number, since 2×87499838399² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87499838999) 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 7 ways as a sum of consecutive naturals, for example, 2129897 + ... + 2170589.

It is an arithmetic number, because the mean of its divisors is an integer number (11038654440).

Almost surely, 2^87499838399 is an apocalyptic number.

87499838399 is a deficient number, since it is larger than the sum of its proper divisors (809397121).

87499838399 is a wasteful number, since it uses less digits than its factorization.

87499838399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60529.

The product of its digits is 846526464, while the sum is 77.

The spelling of 87499838399 in words is "eighty-seven billion, four hundred ninety-nine million, eight hundred thirty-eight thousand, three hundred ninety-nine".