19793676100 has 81 divisors (see below), whose sum is σ = 47248949181. Its totient is φ = 7192072800.

The previous prime is 19793676041. The next prime is 19793676101. The reversal of 19793676100 is 167639791.

The square root of 19793676100 is 140690.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7125723396 + 12667952704 = 84414^2 + 112552^2 .

It is a super-2 number, since 2×19793676100² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19793676101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15475261 + ... + 15476539.

Almost surely, 2^19793676100 is an apocalyptic number.

19793676100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19793676100 is the 140690-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19793676100

19793676100 is an abundant number, since it is smaller than the sum of its proper divisors (27455273081).

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

19793676100 is a wasteful number, since it uses less digits than its factorization.

19793676100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 49.

Multiplying 19793676100 by its sum of digits (49), we get a square (969890128900 = 984830²).

The spelling of 19793676100 in words is "nineteen billion, seven hundred ninety-three million, six hundred seventy-six thousand, one hundred".