427400263636 has 12 divisors (see below), whose sum is σ = 758196358612. Its totient is φ = 210772732608.

The previous prime is 427400263627. The next prime is 427400263637. The reversal of 427400263636 is 636362004724.

It can be written as a sum of positive squares in 2 ways, for example, as 326904923536 + 100495340100 = 571756^2 + 317010^2 .

It is a super-2 number, since 2×427400263636² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 427400263592 and 427400263601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427400263637) 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 3 ways as a sum of consecutive naturals, for example, 731849475 + ... + 731850058.

Almost surely, 2^427400263636 is an apocalyptic number.

It is an amenable number.

427400263636 is a deficient number, since it is larger than the sum of its proper divisors (330796094976).

427400263636 is a wasteful number, since it uses less digits than its factorization.

427400263636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463699610 (or 1463699608 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 43.

The spelling of 427400263636 in words is "four hundred twenty-seven billion, four hundred million, two hundred sixty-three thousand, six hundred thirty-six".