19775582530 has 32 divisors (see below), whose sum is σ = 38838631680. Its totient is φ = 7189902720.

The previous prime is 19775582513. The next prime is 19775582557. The reversal of 19775582530 is 3528557791.

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 15 ways as a sum of consecutive naturals, for example, 869767 + ... + 892213.

It is an arithmetic number, because the mean of its divisors is an integer number (1213707240).

Almost surely, 2^19775582530 is an apocalyptic number.

19775582530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19775582530 is a deficient number, since it is larger than the sum of its proper divisors (19063049150).

19775582530 is a wasteful number, since it uses less digits than its factorization.

19775582530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30474.

The product of its (nonzero) digits is 2646000, while the sum is 52.

The spelling of 19775582530 in words is "nineteen billion, seven hundred seventy-five million, five hundred eighty-two thousand, five hundred thirty".