19042344036 has 81 divisors (see below), whose sum is σ = 48811799673. Its totient is φ = 6259407840.

The previous prime is 19042344031. The next prime is 19042344067. The reversal of 19042344036 is 63044324091.

It is a happy number.

The square root of 19042344036 is 137994.

It is a perfect power (a square), and thus also a powerful number.

19042344036 is a `hidden beast` number, since 19 + 0 + 4 + 234 + 403 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13272422436 + 5769921600 = 115206^2 + 75960^2 .

It is a super-2 number, since 2×19042344036² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (19042344031) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 90247971 + ... + 90248181.

Almost surely, 2^19042344036 is an apocalyptic number.

19042344036 is the 137994-th square number.

It is an amenable number.

19042344036 is an abundant number, since it is smaller than the sum of its proper divisors (29769455637).

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

19042344036 is a wasteful number, since it uses less digits than its factorization.

19042344036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Multiplying 19042344036 by its sum of digits (36), we get a square (685524385296 = 827964²).

19042344036 divided by its sum of digits (36) gives a square (528954001 = 22999²).

The spelling of 19042344036 in words is "nineteen billion, forty-two million, three hundred forty-four thousand, thirty-six".