2019897224856 has 1280 divisors, whose sum is σ = 7230263040000. Its totient is φ = 525081553920.

The previous prime is 2019897224831. The next prime is 2019897224867. The reversal of 2019897224856 is 6584227989102.

2019897224856 is a `hidden beast` number, since 2 + 0 + 1 + 9 + 89 + 72 + 2 + 485 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 2019897224793 and 2019897224802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 11159653086 + ... + 11159653266.

It is an arithmetic number, because the mean of its divisors is an integer number (5648643000).

Almost surely, 2^{2019897224856} 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 2019897224856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3615131520000).

2019897224856 is an abundant number, since it is smaller than the sum of its proper divisors (5210365815144).

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

2019897224856 is a wasteful number, since it uses less digits than its factorization.

2019897224856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 2019897224856 in words is "two trillion, nineteen billion, eight hundred ninety-seven million, two hundred twenty-four thousand, eight hundred fifty-six".