19144635308 has 6 divisors (see below), whose sum is σ = 33503111796. Its totient is φ = 9572317652.

The previous prime is 19144635287. The next prime is 19144635347. The reversal of 19144635308 is 80353644191.

It is a super-2 number, since 2×19144635308² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2393079410 + ... + 2393079417.

It is an arithmetic number, because the mean of its divisors is an integer number (5583851966).

Almost surely, 2^19144635308 is an apocalyptic number.

It is an amenable number.

19144635308 is a deficient number, since it is larger than the sum of its proper divisors (14358476488).

19144635308 is a wasteful number, since it uses less digits than its factorization.

19144635308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786158831 (or 4786158829 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 19144635308 in words is "nineteen billion, one hundred forty-four million, six hundred thirty-five thousand, three hundred eight".