19055450736 has 120 divisors (see below), whose sum is σ = 61412866944. Its totient is φ = 5402816640.

The previous prime is 19055450707. The next prime is 19055450747. The reversal of 19055450736 is 63705455091.

19055450736 is a `hidden beast` number, since 1 + 90 + 5 + 54 + 507 + 3 + 6 = 666.

It is a super-2 number, since 2×19055450736² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 19055450691 and 19055450700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59895 + ... + 204201.

Almost surely, 2^19055450736 is an apocalyptic number.

19055450736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19055450736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30706433472).

19055450736 is an abundant number, since it is smaller than the sum of its proper divisors (42357416208).

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

19055450736 is a wasteful number, since it uses less digits than its factorization.

19055450736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144459 (or 144450 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The spelling of 19055450736 in words is "nineteen billion, fifty-five million, four hundred fifty thousand, seven hundred thirty-six".