1982568627451 has 4 divisors (see below), whose sum is σ = 2002198019904. Its totient is φ = 1962939235000.

The previous prime is 1982568627401. The next prime is 1982568627467. The reversal of 1982568627451 is 1547268652891.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1982568627451 - 2⁷ = 1982568627323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1982568627401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9814696075 + ... + 9814696276.

It is an arithmetic number, because the mean of its divisors is an integer number (500549504976).

Almost surely, 2^{1982568627451} is an apocalyptic number.

1982568627451 is a deficient number, since it is larger than the sum of its proper divisors (19629392453).

1982568627451 is a wasteful number, since it uses less digits than its factorization.

1982568627451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19629392452.

The product of its digits is 58060800, while the sum is 64.

The spelling of 1982568627451 in words is "one trillion, nine hundred eighty-two billion, five hundred sixty-eight million, six hundred twenty-seven thousand, four hundred fifty-one".