2775728605020 has 192 divisors, whose sum is σ = 9177481420800. Its totient is φ = 613408619520.

The previous prime is 2775728604991. The next prime is 2775728605049. The reversal of 2775728605020 is 205068275772.

It is an interprime number because it is at equal distance from previous prime (2775728604991) and next prime (2775728605049).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13818666 + ... + 14018094.

It is an arithmetic number, because the mean of its divisors is an integer number (47799382400).

Almost surely, 2^{2775728605020} is an apocalyptic number.

2775728605020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2775728605020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4588740710400).

2775728605020 is an abundant number, since it is smaller than the sum of its proper divisors (6401752815780).

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

2775728605020 is a wasteful number, since it uses less digits than its factorization.

2775728605020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200548 (or 200546 counting only the distinct ones).

The product of its (nonzero) digits is 3292800, while the sum is 51.

The spelling of 2775728605020 in words is "two trillion, seven hundred seventy-five billion, seven hundred twenty-eight million, six hundred five thousand, twenty".