426665054044261 has 8 divisors (see below), whose sum is σ = 427396276244600. Its totient is φ = 425934196459200.

The previous prime is 426665054044259. The next prime is 426665054044289. The reversal of 426665054044261 is 162440450566624.

It can be written as a sum of positive squares in 4 ways, for example, as 9962036100 + 426655092008161 = 99810^2 + 20655631^2 .

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 426665054044261 - 2¹ = 426665054044259 is a prime.

It is a super-2 number, since 2×426665054044261² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426665054044241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88811406 + ... + 93492223.

It is an arithmetic number, because the mean of its divisors is an integer number (53424534530575).

Almost surely, 2^{426665054044261} is an apocalyptic number.

It is an amenable number.

426665054044261 is a deficient number, since it is larger than the sum of its proper divisors (731222200339).

426665054044261 is a wasteful number, since it uses less digits than its factorization.

426665054044261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182307639.

The product of its (nonzero) digits is 33177600, while the sum is 55.

The spelling of 426665054044261 in words is "four hundred twenty-six trillion, six hundred sixty-five billion, fifty-four million, forty-four thousand, two hundred sixty-one".