87227165844 has 192 divisors, whose sum is σ = 279983961600. Its totient is φ = 23004528768.

The previous prime is 87227165843. The next prime is 87227165849. The reversal of 87227165844 is 44856172278.

It is a super-2 number, since 2×87227165844² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87227165843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1634674 + ... + 1687190.

It is an arithmetic number, because the mean of its divisors is an integer number (1458249800).

Almost surely, 2^87227165844 is an apocalyptic number.

87227165844 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87227165844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139991980800).

87227165844 is an abundant number, since it is smaller than the sum of its proper divisors (192756795756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87227165844 is a wasteful number, since it uses less digits than its factorization.

87227165844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52576 (or 52542 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 54.

The spelling of 87227165844 in words is "eighty-seven billion, two hundred twenty-seven million, one hundred sixty-five thousand, eight hundred forty-four".