428103803673 has 48 divisors (see below), whose sum is σ = 778772874880. Its totient is φ = 220561512192.

The previous prime is 428103803657. The next prime is 428103803693. The reversal of 428103803673 is 376308301824.

428103803673 is a `hidden beast` number, since 4 + 281 + 0 + 3 + 8 + 0 + 367 + 3 = 666.

It is not a de Polignac number, because 428103803673 - 2⁴ = 428103803657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428103803693) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6042868 + ... + 6113301.

Almost surely, 2^428103803673 is an apocalyptic number.

428103803673 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

428103803673 is a deficient number, since it is larger than the sum of its proper divisors (350669071207).

428103803673 is a wasteful number, since it uses less digits than its factorization.

428103803673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12156238 (or 12156235 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

It can be divided in two parts, 42810 and 3803673, that added together give a palindrome (3846483).

The spelling of 428103803673 in words is "four hundred twenty-eight billion, one hundred three million, eight hundred three thousand, six hundred seventy-three".