427181584101 has 4 divisors (see below), whose sum is σ = 569575445472. Its totient is φ = 284787722732.

The previous prime is 427181584091. The next prime is 427181584157. The reversal of 427181584101 is 101485181724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427181584101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427181584801) 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, 71196930681 + ... + 71196930686.

It is an arithmetic number, because the mean of its divisors is an integer number (142393861368).

Almost surely, 2^427181584101 is an apocalyptic number.

It is an amenable number.

427181584101 is a deficient number, since it is larger than the sum of its proper divisors (142393861371).

427181584101 is a wasteful number, since it uses less digits than its factorization.

427181584101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142393861370.

The product of its (nonzero) digits is 71680, while the sum is 42.

The spelling of 427181584101 in words is "four hundred twenty-seven billion, one hundred eighty-one million, five hundred eighty-four thousand, one hundred one".