2781805530264 has 32 divisors (see below), whose sum is σ = 6966566743920. Its totient is φ = 925661454336.

The previous prime is 2781805530263. The next prime is 2781805530271. The reversal of 2781805530264 is 4620355081872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2781805530263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100426849 + ... + 100454544.

Almost surely, 2^{2781805530264} is an apocalyptic number.

2781805530264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2781805530264 is an abundant number, since it is smaller than the sum of its proper divisors (4184761213656).

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

2781805530264 is a wasteful number, since it uses less digits than its factorization.

2781805530264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200881979 (or 200881975 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 2781805530264 in words is "two trillion, seven hundred eighty-one billion, eight hundred five million, five hundred thirty thousand, two hundred sixty-four".