2780550275305 has 32 divisors (see below), whose sum is σ = 3648191083776. Its totient is φ = 2017666560000.

The previous prime is 2780550275303. The next prime is 2780550275309. The reversal of 2780550275305 is 5035720550872.

It is not a de Polignac number, because 2780550275305 - 2¹ = 2780550275303 is a prime.

It is a super-2 number, since 2×2780550275305² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2780550275303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96295020 + ... + 96323890.

It is an arithmetic number, because the mean of its divisors is an integer number (114005971368).

Almost surely, 2^{2780550275305} is an apocalyptic number.

It is an amenable number.

2780550275305 is a deficient number, since it is larger than the sum of its proper divisors (867640808471).

2780550275305 is a wasteful number, since it uses less digits than its factorization.

2780550275305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32769.

The product of its (nonzero) digits is 2940000, while the sum is 49.

The spelling of 2780550275305 in words is "two trillion, seven hundred eighty billion, five hundred fifty million, two hundred seventy-five thousand, three hundred five".