427541969921 has 8 divisors (see below), whose sum is σ = 482492505600. Its totient is φ = 375271948240.

The previous prime is 427541969839. The next prime is 427541969971. The reversal of 427541969921 is 129969145724.

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 427541969921 - 2¹⁴ = 427541953537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427541969971) 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 7 ways as a sum of consecutive naturals, for example, 670128161 + ... + 670128798.

It is an arithmetic number, because the mean of its divisors is an integer number (60311563200).

Almost surely, 2^427541969921 is an apocalyptic number.

It is an amenable number.

427541969921 is a deficient number, since it is larger than the sum of its proper divisors (54950535679).

427541969921 is a wasteful number, since it uses less digits than its factorization.

427541969921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340256999.

The product of its digits is 9797760, while the sum is 59.

The spelling of 427541969921 in words is "four hundred twenty-seven billion, five hundred forty-one million, nine hundred sixty-nine thousand, nine hundred twenty-one".