427475978909988 has 48 divisors (see below), whose sum is σ = 1023922123800576. Its totient is φ = 138730707228960.

The previous prime is 427475978909899. The next prime is 427475978910049. The reversal of 427475978909988 is 889909879574724.

It is a junction number, because it is equal to n+sod(n) for n = 427475978909895 and 427475978909904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1331739556 + ... + 1332060507.

It is an arithmetic number, because the mean of its divisors is an integer number (21331710912512).

Almost surely, 2^{427475978909988} is an apocalyptic number.

It is an amenable number.

427475978909988 is an abundant number, since it is smaller than the sum of its proper divisors (596446144890588).

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

427475978909988 is a wasteful number, since it uses less digits than its factorization.

427475978909988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663800424 (or 2663800422 counting only the distinct ones).

The product of its (nonzero) digits is 184354652160, while the sum is 96.

The spelling of 427475978909988 in words is "four hundred twenty-seven trillion, four hundred seventy-five billion, nine hundred seventy-eight million, nine hundred nine thousand, nine hundred eighty-eight".