19210202055 has 128 divisors (see below), whose sum is σ = 38776320000. Its totient is φ = 8941484160.

The previous prime is 19210202051. The next prime is 19210202057. The reversal of 19210202055 is 55020201291.

It is not a de Polignac number, because 19210202055 - 2² = 19210202051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19210202051) 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 127 ways as a sum of consecutive naturals, for example, 3764896 + ... + 3769994.

It is an arithmetic number, because the mean of its divisors is an integer number (302940000).

Almost surely, 2^19210202055 is an apocalyptic number.

19210202055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19210202055 is an abundant number, since it is smaller than the sum of its proper divisors (19566117945).

19210202055 is a wasteful number, since it uses less digits than its factorization.

19210202055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5226 (or 5220 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The spelling of 19210202055 in words is "nineteen billion, two hundred ten million, two hundred two thousand, fifty-five".