427138312560 has 60 divisors (see below), whose sum is σ = 1324160156808. Its totient is φ = 113900850048.

The previous prime is 427138312511. The next prime is 427138312567. The reversal of 427138312560 is 65213831724.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427138312567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10103787 + ... + 10145973.

Almost surely, 2^427138312560 is an apocalyptic number.

427138312560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

427138312560 is an abundant number, since it is smaller than the sum of its proper divisors (897021844248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427138312560 is an frugal number, since it uses more digits than its factorization.

427138312560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84390 (or 42197 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 427138312560 in words is "four hundred twenty-seven billion, one hundred thirty-eight million, three hundred twelve thousand, five hundred sixty".