1983291250625 has 20 divisors (see below), whose sum is σ = 2586073841472. Its totient is φ = 1517648946000.

The previous prime is 1983291250609. The next prime is 1983291250639. The reversal of 1983291250625 is 5260521923891.

It is not a de Polignac number, because 1983291250625 - 2⁴ = 1983291250609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 68969669 + ... + 68998418.

Almost surely, 2^{1983291250625} is an apocalyptic number.

It is an amenable number.

1983291250625 is a deficient number, since it is larger than the sum of its proper divisors (602782590847).

1983291250625 is an equidigital number, since it uses as much as digits as its factorization.

1983291250625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137968130 (or 137968115 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 53.

The spelling of 1983291250625 in words is "one trillion, nine hundred eighty-three billion, two hundred ninety-one million, two hundred fifty thousand, six hundred twenty-five".