19839680752 has 20 divisors (see below), whose sum is σ = 38448945360. Its totient is φ = 9917372288.

The previous prime is 19839680743. The next prime is 19839680759. The reversal of 19839680752 is 25708693891.

It is a super-2 number, since 2×19839680752² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19839680759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87052 + ... + 217387.

It is an arithmetic number, because the mean of its divisors is an integer number (1922447268).

Almost surely, 2^19839680752 is an apocalyptic number.

It is an amenable number.

19839680752 is a deficient number, since it is larger than the sum of its proper divisors (18609264608).

19839680752 is a wasteful number, since it uses less digits than its factorization.

19839680752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308520 (or 308514 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 19839680752 in words is "nineteen billion, eight hundred thirty-nine million, six hundred eighty thousand, seven hundred fifty-two".