19414376856 has 384 divisors, whose sum is σ = 66788167680. Its totient is φ = 4967682048.

The previous prime is 19414376777. The next prime is 19414376869. The reversal of 19414376856 is 65867341491.

19414376856 is a `hidden beast` number, since 194 + 1 + 4 + 376 + 85 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14899101 + ... + 14900403.

It is an arithmetic number, because the mean of its divisors is an integer number (173927520).

Almost surely, 2^19414376856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19414376856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33394083840).

19414376856 is an abundant number, since it is smaller than the sum of its proper divisors (47373790824).

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

19414376856 is a wasteful number, since it uses less digits than its factorization.

19414376856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423 (or 1416 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 19414376856 in words is "nineteen billion, four hundred fourteen million, three hundred seventy-six thousand, eight hundred fifty-six".