19228976634 has 64 divisors (see below), whose sum is σ = 44439570432. Its totient is φ = 5433220800.

The previous prime is 19228976633. The next prime is 19228976687. The reversal of 19228976634 is 43667982291.

It is not an unprimeable number, because it can be changed into a prime (19228976633) 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 31 ways as a sum of consecutive naturals, for example, 2832324 + ... + 2839104.

It is an arithmetic number, because the mean of its divisors is an integer number (694368288).

Almost surely, 2^19228976634 is an apocalyptic number.

19228976634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19228976634 is an abundant number, since it is smaller than the sum of its proper divisors (25210593798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19228976634 is a wasteful number, since it uses less digits than its factorization.

19228976634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7531.

The product of its digits is 7838208, while the sum is 57.

The spelling of 19228976634 in words is "nineteen billion, two hundred twenty-eight million, nine hundred seventy-six thousand, six hundred thirty-four".