87028882078 has 4 divisors (see below), whose sum is σ = 130543323120. Its totient is φ = 43514441038.

The previous prime is 87028882069. The next prime is 87028882079.

87028882078 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87028882079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21757220518 + ... + 21757220521.

It is an arithmetic number, because the mean of its divisors is an integer number (32635830780).

Almost surely, 2^87028882078 is an apocalyptic number.

87028882078 is a deficient number, since it is larger than the sum of its proper divisors (43514441042).

87028882078 is a wasteful number, since it uses less digits than its factorization.

87028882078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43514441041.

The product of its (nonzero) digits is 6422528, while the sum is 58.

The spelling of 87028882078 in words is "eighty-seven billion, twenty-eight million, eight hundred eighty-two thousand, seventy-eight".