19416872055 has 48 divisors (see below), whose sum is σ = 36255047904. Its totient is φ = 8847820800.

The previous prime is 19416872051. The next prime is 19416872071. The reversal of 19416872055 is 55027861491.

It is a happy number.

It is not a de Polignac number, because 19416872055 - 2² = 19416872051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19416871995 and 19416872013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19416872051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187855 + ... + 272255.

It is an arithmetic number, because the mean of its divisors is an integer number (755313498).

Almost surely, 2^19416872055 is an apocalyptic number.

19416872055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19416872055 is a deficient number, since it is larger than the sum of its proper divisors (16838175849).

19416872055 is a wasteful number, since it uses less digits than its factorization.

19416872055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84736 (or 84729 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 19416872055 in words is "nineteen billion, four hundred sixteen million, eight hundred seventy-two thousand, fifty-five".