1982374923551 has 32 divisors (see below), whose sum is σ = 2195624606976. Its totient is φ = 1789653016800.

The previous prime is 1982374923539. The next prime is 1982374923559. The reversal of 1982374923551 is 1553294732891.

It is not a de Polignac number, because 1982374923551 - 2¹⁴ = 1982374907167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982374923559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218054516 + ... + 218063606.

It is an arithmetic number, because the mean of its divisors is an integer number (68613268968).

Almost surely, 2^{1982374923551} is an apocalyptic number.

1982374923551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1982374923551 is a deficient number, since it is larger than the sum of its proper divisors (213249683425).

1982374923551 is an equidigital number, since it uses as much as digits as its factorization.

1982374923551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10244 (or 10222 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 59.

The spelling of 1982374923551 in words is "one trillion, nine hundred eighty-two billion, three hundred seventy-four million, nine hundred twenty-three thousand, five hundred fifty-one".