87442224478 has 16 divisors (see below), whose sum is σ = 149908746240. Its totient is φ = 37473291576.

The previous prime is 87442224449. The next prime is 87442224547.

It is a happy number.

87442224478 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×87442224478² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135583 + ... + 439621.

It is an arithmetic number, because the mean of its divisors is an integer number (9369296640).

Almost surely, 2^87442224478 is an apocalyptic number.

87442224478 is a deficient number, since it is larger than the sum of its proper divisors (62466521762).

87442224478 is a wasteful number, since it uses less digits than its factorization.

87442224478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324591.

The product of its digits is 6422528, while the sum is 52.

The spelling of 87442224478 in words is "eighty-seven billion, four hundred forty-two million, two hundred twenty-four thousand, four hundred seventy-eight".