2068561019456 has 28 divisors (see below), whose sum is σ = 4346259644268. Its totient is φ = 973440479232.

The previous prime is 2068561019429. The next prime is 2068561019471. The reversal of 2068561019456 is 6549101658602.

It can be written as a sum of positive squares in 2 ways, for example, as 1817600097856 + 250960921600 = 1348184^2 + 500960^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2068561019398 and 2068561019407.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 950624381 + ... + 950626556.

Almost surely, 2^{2068561019456} is an apocalyptic number.

It is an amenable number.

2068561019456 is an abundant number, since it is smaller than the sum of its proper divisors (2277698624812).

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

2068561019456 is a wasteful number, since it uses less digits than its factorization.

2068561019456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901250966 (or 1901250956 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 53.

The spelling of 2068561019456 in words is "two trillion, sixty-eight billion, five hundred sixty-one million, nineteen thousand, four hundred fifty-six".