87165072382 has 4 divisors (see below), whose sum is σ = 130747608576. Its totient is φ = 43582536190.

The previous prime is 87165072373. The next prime is 87165072427. The reversal of 87165072382 is 28327056178.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28327056178 = 2 ⋅14163528089.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21791268094 + ... + 21791268097.

It is an arithmetic number, because the mean of its divisors is an integer number (32686902144).

Almost surely, 2^87165072382 is an apocalyptic number.

87165072382 is a deficient number, since it is larger than the sum of its proper divisors (43582536194).

87165072382 is a wasteful number, since it uses less digits than its factorization.

87165072382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43582536193.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 87165072382 in words is "eighty-seven billion, one hundred sixty-five million, seventy-two thousand, three hundred eighty-two".