426071315261 has 16 divisors (see below), whose sum is σ = 444101897520. Its totient is φ = 408417292800.

The previous prime is 426071315221. The next prime is 426071315317. The reversal of 426071315261 is 162513170624.

It can be written as a sum of positive squares in 8 ways, for example, as 1599520036 + 424471795225 = 39994^2 + 651515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426071315261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426071315221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 678611 + ... + 1145711.

It is an arithmetic number, because the mean of its divisors is an integer number (27756368595).

Almost surely, 2^426071315261 is an apocalyptic number.

It is an amenable number.

426071315261 is a deficient number, since it is larger than the sum of its proper divisors (18030582259).

426071315261 is a wasteful number, since it uses less digits than its factorization.

426071315261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467504.

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 426071315261 its reverse (162513170624), we get a palindrome (588584485885).

The spelling of 426071315261 in words is "four hundred twenty-six billion, seventy-one million, three hundred fifteen thousand, two hundred sixty-one".