19472979773952 has 240 divisors, whose sum is σ = 57292768653120. Its totient is φ = 6365962715136.

The previous prime is 19472979773899. The next prime is 19472979773963. The reversal of 19472979773952 is 25937797927491.

19472979773952 is a `hidden beast` number, since 1 + 9 + 4 + 72 + 97 + 9 + 77 + 395 + 2 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 52211749 + ... + 52583387.

It is an arithmetic number, because the mean of its divisors is an integer number (238719869388).

Almost surely, 2^{19472979773952} is an apocalyptic number.

19472979773952 is a gapful number since it is divisible by the number (12) 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 19472979773952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28646384326560).

19472979773952 is an abundant number, since it is smaller than the sum of its proper divisors (37819788879168).

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

19472979773952 is a wasteful number, since it uses less digits than its factorization.

19472979773952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371883 (or 371864 counting only the distinct ones).

The product of its digits is 3780710640, while the sum is 81.

The spelling of 19472979773952 in words is "nineteen trillion, four hundred seventy-two billion, nine hundred seventy-nine million, seven hundred seventy-three thousand, nine hundred fifty-two".