427799745989 has 96 divisors (see below), whose sum is σ = 567313036416. Its totient is φ = 318701537280.

The previous prime is 427799745959. The next prime is 427799746009. The reversal of 427799745989 is 989547997724.

It is not a de Polignac number, because 427799745989 - 2⁸ = 427799745733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427799745959) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 665318102 + ... + 665318744.

It is an arithmetic number, because the mean of its divisors is an integer number (5909510796).

Almost surely, 2^427799745989 is an apocalyptic number.

427799745989 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

427799745989 is a deficient number, since it is larger than the sum of its proper divisors (139513290427).

427799745989 is a wasteful number, since it uses less digits than its factorization.

427799745989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1228 counting only the distinct ones).

The product of its digits is 2880541440, while the sum is 80.

The spelling of 427799745989 in words is "four hundred twenty-seven billion, seven hundred ninety-nine million, seven hundred forty-five thousand, nine hundred eighty-nine".