19774292160 has 224 divisors, whose sum is σ = 71908416000. Its totient is φ = 4510015488.

The previous prime is 19774292141. The next prime is 19774292189. The reversal of 19774292160 is 6129247791.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3350332 + ... + 3356228.

Almost surely, 2^19774292160 is an apocalyptic number.

19774292160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19774292160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35954208000).

19774292160 is an abundant number, since it is smaller than the sum of its proper divisors (52134123840).

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

19774292160 is a wasteful number, since it uses less digits than its factorization.

19774292160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6423 (or 6413 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The spelling of 19774292160 in words is "nineteen billion, seven hundred seventy-four million, two hundred ninety-two thousand, one hundred sixty".