87147980965363 has 4 divisors (see below), whose sum is σ = 87218775427168. Its totient is φ = 87077186503560.

The previous prime is 87147980965351. The next prime is 87147980965393. The reversal of 87147980965363 is 36356908974178.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87147980965363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87147980965363.

It is not an unprimeable number, because it can be changed into a prime (87147980965393) 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, 35397229056 + ... + 35397231517.

It is an arithmetic number, because the mean of its divisors is an integer number (21804693856792).

Almost surely, 2^{87147980965363} is an apocalyptic number.

87147980965363 is a deficient number, since it is larger than the sum of its proper divisors (70794461805).

87147980965363 is a wasteful number, since it uses less digits than its factorization.

87147980965363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70794461804.

The product of its (nonzero) digits is 1646023680, while the sum is 76.

The spelling of 87147980965363 in words is "eighty-seven trillion, one hundred forty-seven billion, nine hundred eighty million, nine hundred sixty-five thousand, three hundred sixty-three".