87242851984 has 10 divisors (see below), whose sum is σ = 169033025750. Its totient is φ = 43621425984.

The previous prime is 87242851921. The next prime is 87242851987. The reversal of 87242851984 is 48915824278.

It can be written as a sum of positive squares in only one way, i.e., 54419558400 + 32823293584 = 233280^2 + 181172^2 .

It is a super-2 number, since 2×87242851984² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87242851987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2726339109 + ... + 2726339140.

It is an arithmetic number, because the mean of its divisors is an integer number (16903302575).

Almost surely, 2^87242851984 is an apocalyptic number.

It is an amenable number.

87242851984 is a deficient number, since it is larger than the sum of its proper divisors (81790173766).

87242851984 is a wasteful number, since it uses less digits than its factorization.

87242851984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452678257 (or 5452678251 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 58.

The spelling of 87242851984 in words is "eighty-seven billion, two hundred forty-two million, eight hundred fifty-one thousand, nine hundred eighty-four".