275383866925440 has 1024 divisors, whose sum is σ = 1215211421491200. Its totient is φ = 58102942851072.

The previous prime is 275383866925381. The next prime is 275383866925457. The reversal of 275383866925440 is 44529668383572.

275383866925440 is a `hidden beast` number, since 2 + 7 + 5 + 3 + 8 + 38 + 66 + 92 + 5 + 440 = 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 127 ways as a sum of consecutive naturals, for example, 126289849 + ... + 128451911.

It is an arithmetic number, because the mean of its divisors is an integer number (1186729903800).

Almost surely, 2^{275383866925440} is an apocalyptic number.

275383866925440 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 275383866925440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607605710745600).

275383866925440 is an abundant number, since it is smaller than the sum of its proper divisors (939827554565760).

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

275383866925440 is an equidigital number, since it uses as much as digits as its factorization.

275383866925440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162123 (or 2162093 counting only the distinct ones).

The product of its (nonzero) digits is 2090188800, while the sum is 72.

The spelling of 275383866925440 in words is "two hundred seventy-five trillion, three hundred eighty-three billion, eight hundred sixty-six million, nine hundred twenty-five thousand, four hundred forty".