19953383952 has 40 divisors (see below), whose sum is σ = 51714183136. Its totient is φ = 6629458176.

The previous prime is 19953383917. The next prime is 19953383963. The reversal of 19953383952 is 25938335991.

It is a super-2 number, since 2×19953383952² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19953383892 and 19953383901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662293 + ... + 691764.

Almost surely, 2^19953383952 is an apocalyptic number.

19953383952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19953383952 is an abundant number, since it is smaller than the sum of its proper divisors (31760799184).

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

19953383952 is a wasteful number, since it uses less digits than its factorization.

19953383952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354375 (or 1354369 counting only the distinct ones).

The product of its digits is 7873200, while the sum is 57.

The spelling of 19953383952 in words is "nineteen billion, nine hundred fifty-three million, three hundred eighty-three thousand, nine hundred fifty-two".