261422562506273 has 8 divisors (see below), whose sum is σ = 298782014955648. Its totient is φ = 224066453079744.

The previous prime is 261422562506263. The next prime is 261422562506317. The reversal of 261422562506273 is 372605265224162.

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

It is a cyclic number.

It is not a de Polignac number, because 261422562506273 - 2²⁶ = 261422495397409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (261422562506263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835588136 + ... + 835900937.

It is an arithmetic number, because the mean of its divisors is an integer number (37347751869456).

Almost surely, 2^{261422562506273} is an apocalyptic number.

It is an amenable number.

261422562506273 is a deficient number, since it is larger than the sum of its proper divisors (37359452449375).

261422562506273 is a wasteful number, since it uses less digits than its factorization.

261422562506273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671511423.

The product of its (nonzero) digits is 14515200, while the sum is 53.

The spelling of 261422562506273 in words is "two hundred sixty-one trillion, four hundred twenty-two billion, five hundred sixty-two million, five hundred six thousand, two hundred seventy-three".