2028488445477 has 48 divisors (see below), whose sum is σ = 3164276567088. Its totient is φ = 1244801433600.

The previous prime is 2028488445437. The next prime is 2028488445479. The reversal of 2028488445477 is 7745448848202.

2028488445477 is a `hidden beast` number, since 2 + 0 + 2 + 8 + 4 + 8 + 84 + 4 + 547 + 7 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 416284330401 + 1612204115076 = 645201^2 + 1269726^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2028488445477 is a prime.

It is a super-2 number, since 2×2028488445477² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028488445479) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253019373 + ... + 253027389.

It is an arithmetic number, because the mean of its divisors is an integer number (65922428481).

Almost surely, 2^{2028488445477} is an apocalyptic number.

It is an amenable number.

2028488445477 is a deficient number, since it is larger than the sum of its proper divisors (1135788121611).

2028488445477 is a wasteful number, since it uses less digits than its factorization.

2028488445477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13830 (or 13827 counting only the distinct ones).

The product of its (nonzero) digits is 128450560, while the sum is 63.

The spelling of 2028488445477 in words is "two trillion, twenty-eight billion, four hundred eighty-eight million, four hundred forty-five thousand, four hundred seventy-seven".