17912460421952 has 14 divisors (see below), whose sum is σ = 35545038649938. Its totient is φ = 8956230210944.

The previous prime is 17912460421949. The next prime is 17912460422063. The reversal of 17912460421952 is 25912406421971.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12641836247296 + 5270624174656 = 3555536^2 + 2295784^2 .

It is a junction number, because it is equal to n+sod(n) for n = 17912460421894 and 17912460421903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139941096983 + ... + 139941097110.

Almost surely, 2^{17912460421952} is an apocalyptic number.

It is an amenable number.

17912460421952 is a deficient number, since it is larger than the sum of its proper divisors (17632578227986).

17912460421952 is an equidigital number, since it uses as much as digits as its factorization.

17912460421952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279882194105 (or 279882194095 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 17912460421952 in words is "seventeen trillion, nine hundred twelve billion, four hundred sixty million, four hundred twenty-one thousand, nine hundred fifty-two".