19403020672996 has 27 divisors (see below), whose sum is σ = 34029991603209. Its totient is φ = 9680212712688.

The previous prime is 19403020672909. The next prime is 19403020673009. The reversal of 19403020672996 is 69927602030491.

The square root of 19403020672996 is 4404886.

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., 15778261618596 + 3624759054400 = 3972186^2 + 1903880^2 .

It is a super-2 number, since 2×19403020672996² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19403020672996.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4484171785 + ... + 4484176111.

Almost surely, 2^{19403020672996} is an apocalyptic number.

19403020672996 is the 4404886-th square number.

It is an amenable number.

19403020672996 is a deficient number, since it is larger than the sum of its proper divisors (14626970930213).

19403020672996 is an frugal number, since it uses more digits than its factorization.

19403020672996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9676 (or 4838 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 58.

The spelling of 19403020672996 in words is "nineteen trillion, four hundred three billion, twenty million, six hundred seventy-two thousand, nine hundred ninety-six".