19523977966082 has 4 divisors (see below), whose sum is σ = 29285966949126. Its totient is φ = 9761988983040.

The previous prime is 19523977965983. The next prime is 19523977966093. The reversal of 19523977966082 is 28066977932591.

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

It can be written as a sum of positive squares in only one way, i.e., 10197605570161 + 9326372395921 = 3193369^2 + 3053911^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4880994491519 + ... + 4880994491522.

Almost surely, 2^{19523977966082} is an apocalyptic number.

19523977966082 is a deficient number, since it is larger than the sum of its proper divisors (9761988983044).

19523977966082 is an equidigital number, since it uses as much as digits as its factorization.

19523977966082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9761988983043.

The product of its (nonzero) digits is 617258880, while the sum is 74.

The spelling of 19523977966082 in words is "nineteen trillion, five hundred twenty-three billion, nine hundred seventy-seven million, nine hundred sixty-six thousand, eighty-two".