2123178982460 has 24 divisors (see below), whose sum is σ = 4462967221440. Its totient is φ = 848454191424.

The previous prime is 2123178982451. The next prime is 2123178982481. The reversal of 2123178982460 is 642898713212.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 51066299 + ... + 51107858.

It is an arithmetic number, because the mean of its divisors is an integer number (185956967560).

Almost surely, 2^{2123178982460} is an apocalyptic number.

2123178982460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123178982460 is an abundant number, since it is smaller than the sum of its proper divisors (2339788238980).

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

2123178982460 is a wasteful number, since it uses less digits than its factorization.

2123178982460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102175205 (or 102175203 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The spelling of 2123178982460 in words is "two trillion, one hundred twenty-three billion, one hundred seventy-eight million, nine hundred eighty-two thousand, four hundred sixty".