2103446860644 has 48 divisors (see below), whose sum is σ = 4955889419712. Its totient is φ = 694324764672.

The previous prime is 2103446860637. The next prime is 2103446860649. The reversal of 2103446860644 is 4460686443012.

It is a junction number, because it is equal to n+sod(n) for n = 2103446860593 and 2103446860602.

It is not an unprimeable number, because it can be changed into a prime (2103446860649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832132 + ... + 2213444.

It is an arithmetic number, because the mean of its divisors is an integer number (103247696244).

Almost surely, 2^{2103446860644} is an apocalyptic number.

It is an amenable number.

2103446860644 is an abundant number, since it is smaller than the sum of its proper divisors (2852442559068).

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

2103446860644 is a wasteful number, since it uses less digits than its factorization.

2103446860644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382556 (or 1382554 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 48.

The spelling of 2103446860644 in words is "two trillion, one hundred three billion, four hundred forty-six million, eight hundred sixty thousand, six hundred forty-four".