19483649745 has 24 divisors (see below), whose sum is σ = 36263447424. Its totient is φ = 8906810976.

The previous prime is 19483649701. The next prime is 19483649753. The reversal of 19483649745 is 54794638491.

It is not a de Polignac number, because 19483649745 - 2⁹ = 19483649233 is a prime.

It is a super-2 number, since 2×19483649745² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13253449 + ... + 13254918.

It is an arithmetic number, because the mean of its divisors is an integer number (1510976976).

Almost surely, 2^19483649745 is an apocalyptic number.

19483649745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19483649745 is a deficient number, since it is larger than the sum of its proper divisors (16779797679).

19483649745 is a wasteful number, since it uses less digits than its factorization.

19483649745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26508389 (or 26508382 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 60.

The spelling of 19483649745 in words is "nineteen billion, four hundred eighty-three million, six hundred forty-nine thousand, seven hundred forty-five".