275861491197 has 16 divisors (see below), whose sum is σ = 389574639360. Its totient is φ = 173034842112.

The previous prime is 275861491183. The next prime is 275861491219. The reversal of 275861491197 is 791194168572.

It is not a de Polignac number, because 275861491197 - 2⁶ = 275861491133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275861491197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275861491117) 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, 691813 + ... + 1015050.

It is an arithmetic number, because the mean of its divisors is an integer number (24348414960).

Almost surely, 2^275861491197 is an apocalyptic number.

It is an amenable number.

275861491197 is a deficient number, since it is larger than the sum of its proper divisors (113713148163).

275861491197 is a wasteful number, since it uses less digits than its factorization.

275861491197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710052.

The product of its digits is 7620480, while the sum is 60.

The spelling of 275861491197 in words is "two hundred seventy-five billion, eight hundred sixty-one million, four hundred ninety-one thousand, one hundred ninety-seven".