19782255024 has 80 divisors (see below), whose sum is σ = 64894179840. Its totient is φ = 5652072000.

The previous prime is 19782255019. The next prime is 19782255041. The reversal of 19782255024 is 42055228791.

19782255024 is a `hidden beast` number, since 1 + 9 + 78 + 2 + 2 + 550 + 24 = 666.

It is a super-2 number, since 2×19782255024² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3267852 + ... + 3273899.

It is an arithmetic number, because the mean of its divisors is an integer number (811177248).

Almost surely, 2^19782255024 is an apocalyptic number.

19782255024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19782255024 is an abundant number, since it is smaller than the sum of its proper divisors (45111924816).

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

19782255024 is a wasteful number, since it uses less digits than its factorization.

19782255024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6541775 (or 6541763 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 19782255024 in words is "nineteen billion, seven hundred eighty-two million, two hundred fifty-five thousand, twenty-four".