87488392819 has 4 divisors (see below), whose sum is σ = 87854453280. Its totient is φ = 87122332360.

The previous prime is 87488392801. The next prime is 87488392877. The reversal of 87488392819 is 91829388478.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87488392819 - 2²³ = 87480004211 is a prime.

It is a super-2 number, since 2×87488392819² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87488392879) 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 3 ways as a sum of consecutive naturals, for example, 183029872 + ... + 183030349.

It is an arithmetic number, because the mean of its divisors is an integer number (21963613320).

Almost surely, 2^87488392819 is an apocalyptic number.

87488392819 is a deficient number, since it is larger than the sum of its proper divisors (366060461).

87488392819 is a wasteful number, since it uses less digits than its factorization.

87488392819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366060460.

The product of its digits is 55738368, while the sum is 67.

The spelling of 87488392819 in words is "eighty-seven billion, four hundred eighty-eight million, three hundred ninety-two thousand, eight hundred nineteen".