2087267888644 has 9 divisors (see below), whose sum is σ = 3652723861717. Its totient is φ = 1043632499584.

The previous prime is 2087267888611. The next prime is 2087267888669. The reversal of 2087267888644 is 4468887627802.

The square root of 2087267888644 is 1444738.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1243809328644 + 843458560000 = 1115262^2 + 918400^2 .

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 2528292 + ... + 3250660.

Almost surely, 2^{2087267888644} is an apocalyptic number.

2087267888644 is the 1444738-th square number.

It is an amenable number.

2087267888644 is a deficient number, since it is larger than the sum of its proper divisors (1565455973073).

2087267888644 is an frugal number, since it uses more digits than its factorization.

2087267888644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444742 (or 722371 counting only the distinct ones).

The product of its (nonzero) digits is 462422016, while the sum is 70.

The spelling of 2087267888644 in words is "two trillion, eighty-seven billion, two hundred sixty-seven million, eight hundred eighty-eight thousand, six hundred forty-four".