87798124077 has 8 divisors (see below), whose sum is σ = 119786588064. Its totient is φ = 57170871408.

The previous prime is 87798123989. The next prime is 87798124111. The reversal of 87798124077 is 77042189778.

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

It is not a de Polignac number, because 87798124077 - 2¹⁰ = 87798123053 is a prime.

It is a super-3 number, since 3×87798124077³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87798124077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87798124177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340302678 + ... + 340302935.

It is an arithmetic number, because the mean of its divisors is an integer number (14973323508).

Almost surely, 2^87798124077 is an apocalyptic number.

It is an amenable number.

87798124077 is a deficient number, since it is larger than the sum of its proper divisors (31988463987).

87798124077 is a wasteful number, since it uses less digits than its factorization.

87798124077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680605659.

The product of its (nonzero) digits is 11063808, while the sum is 60.

The spelling of 87798124077 in words is "eighty-seven billion, seven hundred ninety-eight million, one hundred twenty-four thousand, seventy-seven".