87084251684 has 6 divisors (see below), whose sum is σ = 152397440454. Its totient is φ = 43542125840.

The previous prime is 87084251669. The next prime is 87084251687. The reversal of 87084251684 is 48615248078.

It can be written as a sum of positive squares in only one way, i.e., 71011590400 + 16072661284 = 266480^2 + 126778^2 .

It is not an unprimeable number, because it can be changed into a prime (87084251687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10885531457 + ... + 10885531464.

It is an arithmetic number, because the mean of its divisors is an integer number (25399573409).

Almost surely, 2^87084251684 is an apocalyptic number.

It is an amenable number.

87084251684 is a deficient number, since it is larger than the sum of its proper divisors (65313188770).

87084251684 is a wasteful number, since it uses less digits than its factorization.

87084251684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21771062925 (or 21771062923 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 53.

The spelling of 87084251684 in words is "eighty-seven billion, eighty-four million, two hundred fifty-one thousand, six hundred eighty-four".