427887069089 has 8 divisors (see below), whose sum is σ = 429191814792. Its totient is φ = 426584309760.

The previous prime is 427887069061. The next prime is 427887069179. The reversal of 427887069089 is 980960788724.

It can be written as a sum of positive squares in 4 ways, for example, as 182482752400 + 245404316689 = 427180^2 + 495383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427887069089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427887069989) 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, 64544 + ... + 927329.

It is an arithmetic number, because the mean of its divisors is an integer number (53648976849).

Almost surely, 2^427887069089 is an apocalyptic number.

It is an amenable number.

427887069089 is a deficient number, since it is larger than the sum of its proper divisors (1304745703).

427887069089 is an equidigital number, since it uses as much as digits as its factorization.

427887069089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993187.

The product of its (nonzero) digits is 97542144, while the sum is 68.

The spelling of 427887069089 in words is "four hundred twenty-seven billion, eight hundred eighty-seven million, sixty-nine thousand, eighty-nine".