2661237275 has 6 divisors (see below), whose sum is σ = 3299934252. Its totient is φ = 2128989800.

The previous prime is 2661237269. The next prime is 2661237283. The reversal of 2661237275 is 5727321662.

It is not a de Polignac number, because 2661237275 - 2⁴ = 2661237259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53224721 + ... + 53224770.

It is an arithmetic number, because the mean of its divisors is an integer number (549989042).

Almost surely, 2^2661237275 is an apocalyptic number.

2661237275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2661237275 is a deficient number, since it is larger than the sum of its proper divisors (638696977).

2661237275 is a wasteful number, since it uses less digits than its factorization.

2661237275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106449501 (or 106449496 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The square root of 2661237275 is about 51587.1813050490. The cubic root of 2661237275 is about 1385.7807767745.

The spelling of 2661237275 in words is "two billion, six hundred sixty-one million, two hundred thirty-seven thousand, two hundred seventy-five".