19308751338 has 16 divisors (see below), whose sum is σ = 38681130240. Its totient is φ = 6425645856.

The previous prime is 19308751331. The next prime is 19308751369. The reversal of 19308751338 is 83315780391.

It is not an unprimeable number, because it can be changed into a prime (19308751331) 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 7 ways as a sum of consecutive naturals, for example, 2647203 + ... + 2654486.

It is an arithmetic number, because the mean of its divisors is an integer number (2417570640).

Almost surely, 2^19308751338 is an apocalyptic number.

19308751338 is an abundant number, since it is smaller than the sum of its proper divisors (19372378902).

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

19308751338 is a wasteful number, since it uses less digits than its factorization.

19308751338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5302301.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 19308751338 in words is "nineteen billion, three hundred eight million, seven hundred fifty-one thousand, three hundred thirty-eight".