19454676045 has 48 divisors (see below), whose sum is σ = 37377612288. Its totient is φ = 8606666880.

The previous prime is 19454676041. The next prime is 19454676049. The reversal of 19454676045 is 54067645491.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19454676041) and next prime (19454676049).

It is not a de Polignac number, because 19454676045 - 2² = 19454676041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19454676041) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 404134 + ... + 449703.

It is an arithmetic number, because the mean of its divisors is an integer number (778700256).

Almost surely, 2^19454676045 is an apocalyptic number.

19454676045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19454676045 is a deficient number, since it is larger than the sum of its proper divisors (17922936243).

19454676045 is a wasteful number, since it uses less digits than its factorization.

19454676045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853890 (or 853883 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 19454676045 in words is "nineteen billion, four hundred fifty-four million, six hundred seventy-six thousand, forty-five".