261422760706 has 8 divisors (see below), whose sum is σ = 400477420800. Its totient is φ = 127930287108.

The previous prime is 261422760689. The next prime is 261422760713. The reversal of 261422760706 is 607067224162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390546506 + ... + 1390546693.

It is an arithmetic number, because the mean of its divisors is an integer number (50059677600).

Almost surely, 2^261422760706 is an apocalyptic number.

261422760706 is a deficient number, since it is larger than the sum of its proper divisors (139054660094).

261422760706 is a wasteful number, since it uses less digits than its factorization.

261422760706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781093248.

The product of its (nonzero) digits is 338688, while the sum is 43.

Adding to 261422760706 its reverse (607067224162), we get a palindrome (868489984868).

The spelling of 261422760706 in words is "two hundred sixty-one billion, four hundred twenty-two million, seven hundred sixty thousand, seven hundred six".