19946605348 has 6 divisors (see below), whose sum is σ = 34906559366. Its totient is φ = 9973302672.

The previous prime is 19946605331. The next prime is 19946605387. The reversal of 19946605348 is 84350664991.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19691947584 + 254657764 = 140328^2 + 15958^2 .

It is a super-2 number, since 2×19946605348² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2493325665 + ... + 2493325672.

Almost surely, 2^19946605348 is an apocalyptic number.

It is an amenable number.

19946605348 is a deficient number, since it is larger than the sum of its proper divisors (14959954018).

19946605348 is a wasteful number, since it uses less digits than its factorization.

19946605348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4986651341 (or 4986651339 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 19946605348 in words is "nineteen billion, nine hundred forty-six million, six hundred five thousand, three hundred forty-eight".