19025772340 has 24 divisors (see below), whose sum is σ = 40241567520. Its totient is φ = 7555557408.

The previous prime is 19025772323. The next prime is 19025772373. The reversal of 19025772340 is 4327752091.

It is a junction number, because it is equal to n+sod(n) for n = 19025772293 and 19025772302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3419122 + ... + 3424681.

It is an arithmetic number, because the mean of its divisors is an integer number (1676731980).

Almost surely, 2^19025772340 is an apocalyptic number.

19025772340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19025772340 is an abundant number, since it is smaller than the sum of its proper divisors (21215795180).

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

19025772340 is a wasteful number, since it uses less digits than its factorization.

19025772340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6843951 (or 6843949 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 19025772340 in words is "nineteen billion, twenty-five million, seven hundred seventy-two thousand, three hundred forty".