426660426412461 has 6 divisors (see below), whose sum is σ = 616287282595790. Its totient is φ = 284440284274968.

The previous prime is 426660426412403. The next prime is 426660426412499. The reversal of 426660426412461 is 164214624066624.

It can be written as a sum of positive squares in only one way, i.e., 321474500684100 + 105185925728361 = 17929710^2 + 10256019^2 .

It is not a de Polignac number, because 426660426412461 - 2¹⁸ = 426660426150317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 426660426412398 and 426660426412407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426660426412361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23703357022906 + ... + 23703357022923.

Almost surely, 2^{426660426412461} is an apocalyptic number.

It is an amenable number.

426660426412461 is a deficient number, since it is larger than the sum of its proper divisors (189626856183329).

426660426412461 is a wasteful number, since it uses less digits than its factorization.

426660426412461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47406714045835 (or 47406714045832 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 54.

The spelling of 426660426412461 in words is "four hundred twenty-six trillion, six hundred sixty billion, four hundred twenty-six million, four hundred twelve thousand, four hundred sixty-one".