87022364181 has 4 divisors (see below), whose sum is σ = 116029818912. Its totient is φ = 58014909452.

The previous prime is 87022364159. The next prime is 87022364201. The reversal of 87022364181 is 18146322078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87022364181 - 2¹⁹ = 87021839893 is a prime.

It is a super-2 number, since 2×87022364181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87022364131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14503727361 + ... + 14503727366.

It is an arithmetic number, because the mean of its divisors is an integer number (29007454728).

Almost surely, 2^87022364181 is an apocalyptic number.

It is an amenable number.

87022364181 is a deficient number, since it is larger than the sum of its proper divisors (29007454731).

87022364181 is a wasteful number, since it uses less digits than its factorization.

87022364181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29007454730.

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 87022364181 in words is "eighty-seven billion, twenty-two million, three hundred sixty-four thousand, one hundred eighty-one".