275043728977920 has 7488 divisors, whose sum is σ = 1321506845568000. Its totient is φ = 54386378145792.

The previous prime is 275043728977819. The next prime is 275043728977961. The reversal of 275043728977920 is 29779827340572.

275043728977920 is a `hidden beast` number, since 2 + 7 + 504 + 3 + 7 + 2 + 8 + 97 + 7 + 9 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 3090378977236 + ... + 3090378977324.

It is an arithmetic number, because the mean of its divisors is an integer number (176483286000).

Almost surely, 2^{275043728977920} is an apocalyptic number.

275043728977920 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 275043728977920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (660753422784000).

275043728977920 is an abundant number, since it is smaller than the sum of its proper divisors (1046463116590080).

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

275043728977920 is a wasteful number, since it uses less digits than its factorization.

275043728977920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 746807040, while the sum is 72.

The spelling of 275043728977920 in words is "two hundred seventy-five trillion, forty-three billion, seven hundred twenty-eight million, nine hundred seventy-seven thousand, nine hundred twenty".