19804954742748 has 720 divisors, whose sum is σ = 64553209754880. Its totient is φ = 5278880242944.

The previous prime is 19804954742717. The next prime is 19804954742813. The reversal of 19804954742748 is 84724745940891.

19804954742748 is a `hidden beast` number, since 1 + 9 + 8 + 0 + 4 + 9 + 547 + 4 + 2 + 74 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 6932079336 + ... + 6932082192.

Almost surely, 2^{19804954742748} is an apocalyptic number.

19804954742748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19804954742748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32276604877440).

19804954742748 is an abundant number, since it is smaller than the sum of its proper divisors (44748255012132).

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

19804954742748 is an equidigital number, since it uses as much as digits as its factorization.

19804954742748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994 (or 2955 counting only the distinct ones).

The product of its (nonzero) digits is 650280960, while the sum is 72.

The spelling of 19804954742748 in words is "nineteen trillion, eight hundred four billion, nine hundred fifty-four million, seven hundred forty-two thousand, seven hundred forty-eight".