19035645356 has 96 divisors (see below), whose sum is σ = 43782574080. Its totient is φ = 7036243200.

The previous prime is 19035645323. The next prime is 19035645383. The reversal of 19035645356 is 65354653091.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19035645356.

It is an unprimeable number.

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, 298151 + ... + 356321.

It is an arithmetic number, because the mean of its divisors is an integer number (456068480).

Almost surely, 2^19035645356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19035645356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21891287040).

19035645356 is an abundant number, since it is smaller than the sum of its proper divisors (24746928724).

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

19035645356 is a wasteful number, since it uses less digits than its factorization.

19035645356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58255 (or 58253 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 47.

The spelling of 19035645356 in words is "nineteen billion, thirty-five million, six hundred forty-five thousand, three hundred fifty-six".