427017075385 has 12 divisors (see below), whose sum is σ = 540809439588. Its totient is φ = 323633992608.

The previous prime is 427017075343. The next prime is 427017075413. The reversal of 427017075385 is 583570710724.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 328984839184 + 98032236201 = 573572^2 + 313101^2 .

It is not a de Polignac number, because 427017075385 - 2¹¹ = 427017073337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118285474 + ... + 118289083.

It is an arithmetic number, because the mean of its divisors is an integer number (45067453299).

Almost surely, 2^427017075385 is an apocalyptic number.

It is an amenable number.

427017075385 is a deficient number, since it is larger than the sum of its proper divisors (113792364203).

427017075385 is a wasteful number, since it uses less digits than its factorization.

427017075385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236574600 (or 236574581 counting only the distinct ones).

The product of its (nonzero) digits is 1646400, while the sum is 49.

The spelling of 427017075385 in words is "four hundred twenty-seven billion, seventeen million, seventy-five thousand, three hundred eighty-five".