2845020138648 has 128 divisors (see below), whose sum is σ = 7470005414400. Its totient is φ = 901685385216.

The previous prime is 2845020138637. The next prime is 2845020138679. The reversal of 2845020138648 is 8468310205482.

It is a self number, because there is not a number n which added to its sum of digits gives 2845020138648.

It is a congruent number.

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, 183862240 + ... + 183877712.

It is an arithmetic number, because the mean of its divisors is an integer number (58359417300).

Almost surely, 2^{2845020138648} 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 2845020138648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3735002707200).

2845020138648 is an abundant number, since it is smaller than the sum of its proper divisors (4624985275752).

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

2845020138648 is a wasteful number, since it uses less digits than its factorization.

2845020138648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19521 (or 19517 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 51.

The spelling of 2845020138648 in words is "two trillion, eight hundred forty-five billion, twenty million, one hundred thirty-eight thousand, six hundred forty-eight".