2178765539130 has 64 divisors (see below), whose sum is σ = 5249411434368. Its totient is φ = 578743418880.

The previous prime is 2178765539129. The next prime is 2178765539147. The reversal of 2178765539130 is 319355678712.

It is a super-2 number, since 2×2178765539130² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11354142 + ... + 11544438.

It is an arithmetic number, because the mean of its divisors is an integer number (82022053662).

Almost surely, 2^{2178765539130} is an apocalyptic number.

2178765539130 is an abundant number, since it is smaller than the sum of its proper divisors (3070645895238).

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

2178765539130 is a wasteful number, since it uses less digits than its factorization.

2178765539130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191791.

The product of its (nonzero) digits is 9525600, while the sum is 57.

The spelling of 2178765539130 in words is "two trillion, one hundred seventy-eight billion, seven hundred sixty-five million, five hundred thirty-nine thousand, one hundred thirty".