423018287649 has 16 divisors (see below), whose sum is σ = 653941315200. Its totient is φ = 269750791728.

The previous prime is 423018287609. The next prime is 423018287663. The reversal of 423018287649 is 946782810324.

423018287649 is a `hidden beast` number, since 423 + 0 + 1 + 82 + 87 + 64 + 9 = 666.

It is not a de Polignac number, because 423018287649 - 2⁷ = 423018287521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423018287595 and 423018287604.

It is not an unprimeable number, because it can be changed into a prime (423018287609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340593814 + ... + 340595055.

It is an arithmetic number, because the mean of its divisors is an integer number (40871332200).

Almost surely, 2^423018287649 is an apocalyptic number.

It is an amenable number.

423018287649 is a deficient number, since it is larger than the sum of its proper divisors (230923027551).

423018287649 is a wasteful number, since it uses less digits than its factorization.

423018287649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681188901 (or 681188895 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 423018287649 in words is "four hundred twenty-three billion, eighteen million, two hundred eighty-seven thousand, six hundred forty-nine".