275823400981 has 16 divisors (see below), whose sum is σ = 285827823616. Its totient is φ = 265957909056.

The previous prime is 275823400939. The next prime is 275823401023. The reversal of 275823400981 is 189004328572.

It is an interprime number because it is at equal distance from previous prime (275823400939) and next prime (275823401023).

It is a cyclic number.

It is not a de Polignac number, because 275823400981 - 2¹¹ = 275823398933 is a prime.

It is a super-2 number, since 2×275823400981² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275823400901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4229635 + ... + 4294351.

It is an arithmetic number, because the mean of its divisors is an integer number (17864238976).

Almost surely, 2^275823400981 is an apocalyptic number.

It is an amenable number.

275823400981 is a deficient number, since it is larger than the sum of its proper divisors (10004422635).

275823400981 is a wasteful number, since it uses less digits than its factorization.

275823400981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65788.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 275823400981 in words is "two hundred seventy-five billion, eight hundred twenty-three million, four hundred thousand, nine hundred eighty-one".