2159245481988 has 96 divisors (see below), whose sum is σ = 6087508403200. Its totient is φ = 581905109376.

The previous prime is 2159245481977. The next prime is 2159245482013. The reversal of 2159245481988 is 8891845429512.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2588470 + ... + 3319437.

Almost surely, 2^{2159245481988} is an apocalyptic number.

2159245481988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2159245481988 is an abundant number, since it is smaller than the sum of its proper divisors (3928262921212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2159245481988 is a wasteful number, since it uses less digits than its factorization.

2159245481988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5908169 (or 5908167 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 66.

The spelling of 2159245481988 in words is "two trillion, one hundred fifty-nine billion, two hundred forty-five million, four hundred eighty-one thousand, nine hundred eighty-eight".