19839836327740 has 48 divisors (see below), whose sum is σ = 48947512289760. Its totient is φ = 6659525479680.

The previous prime is 19839836327713. The next prime is 19839836327743. The reversal of 19839836327740 is 4772363893891.

It is a self number, because there is not a number n which added to its sum of digits gives 19839836327740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19839836327743) 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, 3468499995 + ... + 3468505714.

It is an arithmetic number, because the mean of its divisors is an integer number (1019739839370).

Almost surely, 2^{19839836327740} is an apocalyptic number.

19839836327740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19839836327740 is an abundant number, since it is smaller than the sum of its proper divisors (29107675962020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19839836327740 is a wasteful number, since it uses less digits than its factorization.

19839836327740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6937005742 (or 6937005740 counting only the distinct ones).

The product of its (nonzero) digits is 329204736, while the sum is 70.

The spelling of 19839836327740 in words is "nineteen trillion, eight hundred thirty-nine billion, eight hundred thirty-six million, three hundred twenty-seven thousand, seven hundred forty".