427840387092 has 36 divisors (see below), whose sum is σ = 1106636250720. Its totient is φ = 139296869712.

The previous prime is 427840387087. The next prime is 427840387123. The reversal of 427840387092 is 290783048724.

It is a happy number.

427840387092 is a `hidden beast` number, since 4 + 2 + 78 + 403 + 87 + 0 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138189792 + ... + 138192887.

Almost surely, 2^427840387092 is an apocalyptic number.

It is an amenable number.

427840387092 is an abundant number, since it is smaller than the sum of its proper divisors (678795863628).

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

427840387092 is a wasteful number, since it uses less digits than its factorization.

427840387092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276382732 (or 276382727 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 427840387092 in words is "four hundred twenty-seven billion, eight hundred forty million, three hundred eighty-seven thousand, ninety-two".