427734427261 has 8 divisors (see below), whose sum is σ = 442523287800. Its totient is φ = 412948193280.

The previous prime is 427734427249. The next prime is 427734427313. The reversal of 427734427261 is 162724437724.

It can be written as a sum of positive squares in 4 ways, for example, as 95647314361 + 332087112900 = 309269^2 + 576270^2 .

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 427734427261 - 2¹⁷ = 427734296189 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 (427734427201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322420 + ... + 979501.

It is an arithmetic number, because the mean of its divisors is an integer number (55315410975).

Almost surely, 2^427734427261 is an apocalyptic number.

It is an amenable number.

427734427261 is a deficient number, since it is larger than the sum of its proper divisors (14788860539).

427734427261 is a wasteful number, since it uses less digits than its factorization.

427734427261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313279.

The product of its digits is 3161088, while the sum is 49.

The spelling of 427734427261 in words is "four hundred twenty-seven billion, seven hundred thirty-four million, four hundred twenty-seven thousand, two hundred sixty-one".