19773000071 has 8 divisors (see below), whose sum is σ = 21573545088. Its totient is φ = 17972955000.

The previous prime is 19773000053. The next prime is 19773000077. The reversal of 19773000071 is 17000037791.

It is a happy number.

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

It is not a de Polignac number, because 19773000071 - 2¹⁴ = 19772983687 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19772999995 and 19773000040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19773000077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39755 + ... + 202796.

It is an arithmetic number, because the mean of its divisors is an integer number (2696693136).

Almost surely, 2^19773000071 is an apocalyptic number.

19773000071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

19773000071 is a deficient number, since it is larger than the sum of its proper divisors (1800545017).

19773000071 is a wasteful number, since it uses less digits than its factorization.

19773000071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249973.

The product of its (nonzero) digits is 9261, while the sum is 35.

The spelling of 19773000071 in words is "nineteen billion, seven hundred seventy-three million, seventy-one", and thus it is an aban number.