2174780485920 has 384 divisors, whose sum is σ = 7858656239616. Its totient is φ = 495227437056.

The previous prime is 2174780485819. The next prime is 2174780485961. The reversal of 2174780485920 is 295840874712.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1409448669 + ... + 1409450211.

It is an arithmetic number, because the mean of its divisors is an integer number (20465250624).

Almost surely, 2^{2174780485920} is an apocalyptic number.

2174780485920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2174780485920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3929328119808).

2174780485920 is an abundant number, since it is smaller than the sum of its proper divisors (5683875753696).

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

2174780485920 is a wasteful number, since it uses less digits than its factorization.

2174780485920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872 (or 2864 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 57.

The spelling of 2174780485920 in words is "two trillion, one hundred seventy-four billion, seven hundred eighty million, four hundred eighty-five thousand, nine hundred twenty".