427715226901 has 4 divisors (see below), whose sum is σ = 428106550252. Its totient is φ = 427323903552.

The previous prime is 427715226833. The next prime is 427715226923. The reversal of 427715226901 is 109622517724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 346061592900 + 81653634001 = 588270^2 + 285751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427715226901 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 (427715226931) 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, 195660036 + ... + 195662221.

It is an arithmetic number, because the mean of its divisors is an integer number (107026637563).

Almost surely, 2^427715226901 is an apocalyptic number.

It is an amenable number.

427715226901 is a deficient number, since it is larger than the sum of its proper divisors (391323351).

427715226901 is a wasteful number, since it uses less digits than its factorization.

427715226901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391323350.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 427715226901 in words is "four hundred twenty-seven billion, seven hundred fifteen million, two hundred twenty-six thousand, nine hundred one".