275091400843 has 4 divisors (see below), whose sum is σ = 314390172400. Its totient is φ = 235792629288.

The previous prime is 275091400811. The next prime is 275091400919. The reversal of 275091400843 is 348004190572.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 275091400843 - 2⁵ = 275091400811 is a prime.

It is a super-2 number, since 2×275091400843² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 275091400843.

It is not an unprimeable number, because it can be changed into a prime (275091430843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19649385768 + ... + 19649385781.

It is an arithmetic number, because the mean of its divisors is an integer number (78597543100).

Almost surely, 2^275091400843 is an apocalyptic number.

275091400843 is a deficient number, since it is larger than the sum of its proper divisors (39298771557).

275091400843 is an equidigital number, since it uses as much as digits as its factorization.

275091400843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39298771556.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 275091400843 in words is "two hundred seventy-five billion, ninety-one million, four hundred thousand, eight hundred forty-three".