2142603478056 has 128 divisors (see below), whose sum is σ = 5533484544000. Its totient is φ = 690904811520.

The previous prime is 2142603478049. The next prime is 2142603478079. The reversal of 2142603478056 is 6508743062412.

It is a junction number, because it is equal to n+sod(n) for n = 2142603477996 and 2142603478014.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291546670 + ... + 291554018.

It is an arithmetic number, because the mean of its divisors is an integer number (43230348000).

Almost surely, 2^{2142603478056} 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 2142603478056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2766742272000).

2142603478056 is an abundant number, since it is smaller than the sum of its proper divisors (3390881065944).

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

2142603478056 is a wasteful number, since it uses less digits than its factorization.

2142603478056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9859 (or 9855 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 2142603478056 in words is "two trillion, one hundred forty-two billion, six hundred three million, four hundred seventy-eight thousand, fifty-six".