19740241919 has 16 divisors (see below), whose sum is σ = 21057408000. Its totient is φ = 18451794240.

The previous prime is 19740241879. The next prime is 19740241973. The reversal of 19740241919 is 91914204791.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 19740241919 - 2³² = 15445274623 is a prime.

It is a super-2 number, since 2×19740241919² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19740241319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797804 + ... + 822174.

It is an arithmetic number, because the mean of its divisors is an integer number (1316088000).

Almost surely, 2^19740241919 is an apocalyptic number.

19740241919 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

19740241919 is a deficient number, since it is larger than the sum of its proper divisors (1317166081).

19740241919 is a wasteful number, since it uses less digits than its factorization.

19740241919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24958.

The product of its (nonzero) digits is 163296, while the sum is 47.

The spelling of 19740241919 in words is "nineteen billion, seven hundred forty million, two hundred forty-one thousand, nine hundred nineteen".