1982890112127 has 8 divisors (see below), whose sum is σ = 2799374276016. Its totient is φ = 1244166344832.

The previous prime is 1982890112107. The next prime is 1982890112131. The reversal of 1982890112127 is 7212110982891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1982890112127 - 2⁷ = 1982890111999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 38880198277 = 1982890112127 / (1 + 9 + 8 + 2 + 8 + 9 + 0 + 1 + 1 + 2 + 1 + 2 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 1982890112127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982890112107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19440099088 + ... + 19440099189.

It is an arithmetic number, because the mean of its divisors is an integer number (349921784502).

Almost surely, 2^{1982890112127} is an apocalyptic number.

1982890112127 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1982890112127 is a deficient number, since it is larger than the sum of its proper divisors (816484163889).

1982890112127 is a wasteful number, since it uses less digits than its factorization.

1982890112127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38880198297.

The product of its (nonzero) digits is 290304, while the sum is 51.

The spelling of 1982890112127 in words is "one trillion, nine hundred eighty-two billion, eight hundred ninety million, one hundred twelve thousand, one hundred twenty-seven".