427501395820 has 24 divisors (see below), whose sum is σ = 910397341728. Its totient is φ = 168592099200.

The previous prime is 427501395803. The next prime is 427501395863. The reversal of 427501395820 is 28593105724.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150527241 + ... + 150530080.

It is an arithmetic number, because the mean of its divisors is an integer number (37933222572).

Almost surely, 2^427501395820 is an apocalyptic number.

It is an amenable number.

427501395820 is an abundant number, since it is smaller than the sum of its proper divisors (482895945908).

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

427501395820 is a wasteful number, since it uses less digits than its factorization.

427501395820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301057401 (or 301057399 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 427501395820 in words is "four hundred twenty-seven billion, five hundred one million, three hundred ninety-five thousand, eight hundred twenty".