427386587904 has 108 divisors (see below), whose sum is σ = 1238454490000. Its totient is φ = 141746153472.

The previous prime is 427386587861. The next prime is 427386587909. The reversal of 427386587904 is 409785683724.

427386587904 is a `hidden beast` number, since 42 + 7 + 3 + 8 + 6 + 587 + 9 + 0 + 4 = 666.

It is a super-2 number, since 2×427386587904² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (427386587909) 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, 7579 + ... + 924570.

Almost surely, 2^427386587904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427386587904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619227245000).

427386587904 is an abundant number, since it is smaller than the sum of its proper divisors (811067902096).

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

427386587904 is a wasteful number, since it uses less digits than its factorization.

427386587904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932370 (or 932353 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 63.

The spelling of 427386587904 in words is "four hundred twenty-seven billion, three hundred eighty-six million, five hundred eighty-seven thousand, nine hundred four".