19073081550 has 48 divisors (see below), whose sum is σ = 47348040960. Its totient is φ = 5081123040.

The previous prime is 19073081513. The next prime is 19073081563. The reversal of 19073081550 is 5518037091.

It is a junction number, because it is equal to n+sod(n) for n = 19073081499 and 19073081508.

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, 90459 + ... + 215241.

It is an arithmetic number, because the mean of its divisors is an integer number (986417520).

Almost surely, 2^19073081550 is an apocalyptic number.

19073081550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19073081550 is an abundant number, since it is smaller than the sum of its proper divisors (28274959410).

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

19073081550 is a wasteful number, since it uses less digits than its factorization.

19073081550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125817 (or 125812 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 39.

The spelling of 19073081550 in words is "nineteen billion, seventy-three million, eighty-one thousand, five hundred fifty".