1982975342731 has 2 divisors, whose sum is σ = 1982975342732. Its totient is φ = 1982975342730.

The previous prime is 1982975342729. The next prime is 1982975342741. The reversal of 1982975342731 is 1372435792891.

It is a weak prime.

It is an emirp because it is prime and its reverse (1372435792891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1982975342731 - 2¹ = 1982975342729 is a prime.

It is a super-2 number, since 2×1982975342731² (a number of 25 digits) contains 22 as substring.

Together with 1982975342729, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1982975342731.

It is not a weakly prime, because it can be changed into another prime (1982975342741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991487671365 + 991487671366.

It is an arithmetic number, because the mean of its divisors is an integer number (991487671366).

Almost surely, 2^{1982975342731} is an apocalyptic number.

1982975342731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1982975342731 is an equidigital number, since it uses as much as digits as its factorization.

1982975342731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22861440, while the sum is 61.

The spelling of 1982975342731 in words is "one trillion, nine hundred eighty-two billion, nine hundred seventy-five million, three hundred forty-two thousand, seven hundred thirty-one".