19226634655 has 8 divisors (see below), whose sum is σ = 23073359184. Its totient is φ = 15380376000.

The previous prime is 19226634649. The next prime is 19226634701. The reversal of 19226634655 is 55643662291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19226634655 - 2²¹ = 19224537503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19226634599 and 19226634608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18121 + ... + 196930.

It is an arithmetic number, because the mean of its divisors is an integer number (2884169898).

Almost surely, 2^19226634655 is an apocalyptic number.

19226634655 is a deficient number, since it is larger than the sum of its proper divisors (3846724529).

19226634655 is a wasteful number, since it uses less digits than its factorization.

19226634655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232937.

The product of its digits is 2332800, while the sum is 49.

The spelling of 19226634655 in words is "nineteen billion, two hundred twenty-six million, six hundred thirty-four thousand, six hundred fifty-five".