87815368273 has 8 divisors (see below), whose sum is σ = 90340930368. Its totient is φ = 85321979184.

The previous prime is 87815368159. The next prime is 87815368309. The reversal of 87815368273 is 37286351878.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87815368273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87815368573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8037715 + ... + 8048632.

It is an arithmetic number, because the mean of its divisors is an integer number (11292616296).

Almost surely, 2^87815368273 is an apocalyptic number.

It is an amenable number.

87815368273 is a deficient number, since it is larger than the sum of its proper divisors (2525562095).

87815368273 is a wasteful number, since it uses less digits than its factorization.

87815368273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16086503.

The product of its digits is 13547520, while the sum is 58.

It can be divided in two parts, 87815368 and 273, that added together give a square (87815641 = 9371²).

The spelling of 87815368273 in words is "eighty-seven billion, eight hundred fifteen million, three hundred sixty-eight thousand, two hundred seventy-three".