19138076180 has 12 divisors (see below), whose sum is σ = 40189960020. Its totient is φ = 7655230464.

The previous prime is 19138076147. The next prime is 19138076183. The reversal of 19138076180 is 8167083191.

It can be written as a sum of positive squares in 2 ways, for example, as 14569938436 + 4568137744 = 120706^2 + 67588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19138076183) 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 3 ways as a sum of consecutive naturals, for example, 478451885 + ... + 478451924.

It is an arithmetic number, because the mean of its divisors is an integer number (3349163335).

Almost surely, 2^19138076180 is an apocalyptic number.

19138076180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19138076180 is an abundant number, since it is smaller than the sum of its proper divisors (21051883840).

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

19138076180 is a wasteful number, since it uses less digits than its factorization.

19138076180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956903818 (or 956903816 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 19138076180 in words is "nineteen billion, one hundred thirty-eight million, seventy-six thousand, one hundred eighty".