1982921288752 has 20 divisors (see below), whose sum is σ = 3935615120136. Its totient is φ = 967278677120.

The previous prime is 1982921288749. The next prime is 1982921288807. The reversal of 1982921288752 is 2578821292891.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1511372278 + ... + 1511373589.

Almost surely, 2^{1982921288752} is an apocalyptic number.

It is an amenable number.

1982921288752 is a deficient number, since it is larger than the sum of its proper divisors (1952693831384).

1982921288752 is a wasteful number, since it uses less digits than its factorization.

1982921288752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022745916 (or 3022745910 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 64.

The spelling of 1982921288752 in words is "one trillion, nine hundred eighty-two billion, nine hundred twenty-one million, two hundred eighty-eight thousand, seven hundred fifty-two".