2356975780056 has 144 divisors (see below), whose sum is σ = 6602366047680. Its totient is φ = 758820268800.

The previous prime is 2356975780031. The next prime is 2356975780079. The reversal of 2356975780056 is 6500875796532.

2356975780056 is a `hidden beast` number, since 2 + 3 + 5 + 6 + 9 + 7 + 578 + 0 + 0 + 56 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2356975779975 and 2356975780002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2308496826 + ... + 2308497846.

It is an arithmetic number, because the mean of its divisors is an integer number (45849764220).

Almost surely, 2^{2356975780056} 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 2356975780056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3301183023840).

2356975780056 is an abundant number, since it is smaller than the sum of its proper divisors (4245390267624).

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

2356975780056 is a wasteful number, since it uses less digits than its factorization.

2356975780056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3098 (or 2070 counting only the distinct ones).

The product of its (nonzero) digits is 95256000, while the sum is 63.

The spelling of 2356975780056 in words is "two trillion, three hundred fifty-six billion, nine hundred seventy-five million, seven hundred eighty thousand, fifty-six".