427019876905 has 8 divisors (see below), whose sum is σ = 518181424200. Its totient is φ = 337777520256.

The previous prime is 427019876903. The next prime is 427019876923. The reversal of 427019876905 is 509678910724.

It can be written as a sum of positive squares in 4 ways, for example, as 10185653776 + 416834223129 = 100924^2 + 645627^2 .

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 427019876905 - 2¹ = 427019876903 is a prime.

It is a super-2 number, since 2×427019876905² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 427019876905.

It is not an unprimeable number, because it can be changed into a prime (427019876903) 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, 479797170 + ... + 479798059.

It is an arithmetic number, because the mean of its divisors is an integer number (64772678025).

Almost surely, 2^427019876905 is an apocalyptic number.

It is an amenable number.

427019876905 is a deficient number, since it is larger than the sum of its proper divisors (91161547295).

427019876905 is an equidigital number, since it uses as much as digits as its factorization.

427019876905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959595323.

The product of its (nonzero) digits is 7620480, while the sum is 58.

The spelling of 427019876905 in words is "four hundred twenty-seven billion, nineteen million, eight hundred seventy-six thousand, nine hundred five".