19474017456345 has 16 divisors (see below), whose sum is σ = 32163538509312. Its totient is φ = 10051105783680.

The previous prime is 19474017456343. The next prime is 19474017456347. The reversal of 19474017456345 is 54365471047491.

It is an interprime number because it is at equal distance from previous prime (19474017456343) and next prime (19474017456347).

It is not a de Polignac number, because 19474017456345 - 2¹ = 19474017456343 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19474017456343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20939803252 + ... + 20939804181.

It is an arithmetic number, because the mean of its divisors is an integer number (2010221156832).

Almost surely, 2^{19474017456345} is an apocalyptic number.

19474017456345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19474017456345 is a deficient number, since it is larger than the sum of its proper divisors (12689521052967).

19474017456345 is a wasteful number, since it uses less digits than its factorization.

19474017456345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41879607472.

The product of its (nonzero) digits is 50803200, while the sum is 60.

The spelling of 19474017456345 in words is "nineteen trillion, four hundred seventy-four billion, seventeen million, four hundred fifty-six thousand, three hundred forty-five".