87367748506501 has 4 divisors (see below), whose sum is σ = 87367781349100. Its totient is φ = 87367715663904.

The previous prime is 87367748506469. The next prime is 87367748506523. The reversal of 87367748506501 is 10560584776378.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6244131378276 + 81123617128225 = 2498826^2 + 9006865^2 .

It is a cyclic number.

It is not a de Polignac number, because 87367748506501 - 2⁵ = 87367748506469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87367748506301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12041646 + ... + 17881183.

It is an arithmetic number, because the mean of its divisors is an integer number (21841945337275).

Almost surely, 2^{87367748506501} is an apocalyptic number.

It is an amenable number.

87367748506501 is a deficient number, since it is larger than the sum of its proper divisors (32842599).

87367748506501 is a wasteful number, since it uses less digits than its factorization.

87367748506501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32842598.

The product of its (nonzero) digits is 237081600, while the sum is 67.

The spelling of 87367748506501 in words is "eighty-seven trillion, three hundred sixty-seven billion, seven hundred forty-eight million, five hundred six thousand, five hundred one".