87128077326499 has 8 divisors (see below), whose sum is σ = 95164583638320. Its totient is φ = 79110866349600.

The previous prime is 87128077326487. The next prime is 87128077326523. The reversal of 87128077326499 is 99462377082178.

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

It is a cyclic number.

It is not a de Polignac number, because 87128077326499 - 2⁵ = 87128077326467 is a prime.

It is a super-2 number, since 2×87128077326499² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87128077336499) 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, 4823824284 + ... + 4823842345.

It is an arithmetic number, because the mean of its divisors is an integer number (11895572954790).

Almost surely, 2^{87128077326499} is an apocalyptic number.

87128077326499 is a deficient number, since it is larger than the sum of its proper divisors (8036506311821).

87128077326499 is a wasteful number, since it uses less digits than its factorization.

87128077326499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9647667461.

The product of its (nonzero) digits is 512096256, while the sum is 73.

The spelling of 87128077326499 in words is "eighty-seven trillion, one hundred twenty-eight billion, seventy-seven million, three hundred twenty-six thousand, four hundred ninety-nine".