87242224278 has 192 divisors, whose sum is σ = 205737831936. Its totient is φ = 24588748800.

The previous prime is 87242224273. The next prime is 87242224297.

87242224278 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×87242224278² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87242224273) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 98801625 + ... + 98802507.

It is an arithmetic number, because the mean of its divisors is an integer number (1071551208).

Almost surely, 2^87242224278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87242224278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102868915968).

87242224278 is an abundant number, since it is smaller than the sum of its proper divisors (118495607658).

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

87242224278 is a wasteful number, since it uses less digits than its factorization.

87242224278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1080 counting only the distinct ones).

The product of its digits is 1605632, while the sum is 48.

The spelling of 87242224278 in words is "eighty-seven billion, two hundred forty-two million, two hundred twenty-four thousand, two hundred seventy-eight".