19320882550 has 24 divisors (see below), whose sum is σ = 36772586136. Its totient is φ = 7548623040.

The previous prime is 19320882461. The next prime is 19320882557. The reversal of 19320882550 is 5528802391.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 19320882497 and 19320882506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19320882557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4491079 + ... + 4495378.

It is an arithmetic number, because the mean of its divisors is an integer number (1532191089).

Almost surely, 2^19320882550 is an apocalyptic number.

19320882550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19320882550 is a deficient number, since it is larger than the sum of its proper divisors (17451703586).

19320882550 is a wasteful number, since it uses less digits than its factorization.

19320882550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8986512 (or 8986507 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 19320882550 in words is "nineteen billion, three hundred twenty million, eight hundred eighty-two thousand, five hundred fifty".