87530274388 has 6 divisors (see below), whose sum is σ = 153177980186. Its totient is φ = 43765137192.

The previous prime is 87530274331. The next prime is 87530274389. The reversal of 87530274388 is 88347203578.

It can be written as a sum of positive squares in only one way, i.e., 49895050384 + 37635224004 = 223372^2 + 193998^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87530274389) 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 as a sum of consecutive naturals, namely, 10941284295 + ... + 10941284302.

Almost surely, 2^87530274388 is an apocalyptic number.

It is an amenable number.

87530274388 is a deficient number, since it is larger than the sum of its proper divisors (65647705798).

87530274388 is a wasteful number, since it uses less digits than its factorization.

87530274388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21882568601 (or 21882568599 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 55.

The spelling of 87530274388 in words is "eighty-seven billion, five hundred thirty million, two hundred seventy-four thousand, three hundred eighty-eight".