427188107653 has 4 divisors (see below), whose sum is σ = 428202806668. Its totient is φ = 426173408640.

The previous prime is 427188107611. The next prime is 427188107657. The reversal of 427188107653 is 356701881724.

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 48251833569 + 378936274084 = 219663^2 + 615578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427188107653 is a prime.

It is a super-2 number, since 2×427188107653² (a number of 24 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 427188107653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427188107657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507348876 + ... + 507349717.

It is an arithmetic number, because the mean of its divisors is an integer number (107050701667).

Almost surely, 2^427188107653 is an apocalyptic number.

It is an amenable number.

427188107653 is a deficient number, since it is larger than the sum of its proper divisors (1014699015).

427188107653 is a wasteful number, since it uses less digits than its factorization.

427188107653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014699014.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 427188107653 in words is "four hundred twenty-seven billion, one hundred eighty-eight million, one hundred seven thousand, six hundred fifty-three".