19963049958 has 24 divisors (see below), whose sum is σ = 43438920408. Its totient is φ = 6625789152.

The previous prime is 19963049947. The next prime is 19963049989. The reversal of 19963049958 is 85994036991.

19963049958 is a `hidden beast` number, since 1 + 9 + 96 + 3 + 0 + 499 + 58 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 19963049895 and 19963049904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2375760 + ... + 2384147.

It is an arithmetic number, because the mean of its divisors is an integer number (1809955017).

Almost surely, 2^19963049958 is an apocalyptic number.

19963049958 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

19963049958 is an abundant number, since it is smaller than the sum of its proper divisors (23475870450).

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

19963049958 is a wasteful number, since it uses less digits than its factorization.

19963049958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4760148 (or 4760145 counting only the distinct ones).

The product of its (nonzero) digits is 18895680, while the sum is 63.

The spelling of 19963049958 in words is "nineteen billion, nine hundred sixty-three million, forty-nine thousand, nine hundred fifty-eight".