42265306261 has 8 divisors (see below), whose sum is σ = 42347536920. Its totient is φ = 42183157248.

The previous prime is 42265306169. The next prime is 42265306271. The reversal of 42265306261 is 16260356224.

It can be written as a sum of positive squares in 4 ways, for example, as 236206161 + 42029100100 = 15369^2 + 205010^2 .

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 42265306261 - 2⁷ = 42265306133 is a prime.

It is a super-2 number, since 2×42265306261² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42265306261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42265306271) 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, 1071945 + ... + 1110673.

It is an arithmetic number, because the mean of its divisors is an integer number (5293442115).

Almost surely, 2^42265306261 is an apocalyptic number.

It is an amenable number.

42265306261 is a deficient number, since it is larger than the sum of its proper divisors (82230659).

42265306261 is a wasteful number, since it uses less digits than its factorization.

42265306261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40823.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 42265306261 in words is "forty-two billion, two hundred sixty-five million, three hundred six thousand, two hundred sixty-one".