428600491640 has 16 divisors (see below), whose sum is σ = 964351106280. Its totient is φ = 171440196640.

The previous prime is 428600491567. The next prime is 428600491643. The reversal of 428600491640 is 46194006824.

It is a junction number, because it is equal to n+sod(n) for n = 428600491591 and 428600491600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428600491643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5357506106 + ... + 5357506185.

Almost surely, 2^428600491640 is an apocalyptic number.

428600491640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428600491640 is an abundant number, since it is smaller than the sum of its proper divisors (535750614640).

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

428600491640 is a wasteful number, since it uses less digits than its factorization.

428600491640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10715012302 (or 10715012298 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 428600491640 in words is "four hundred twenty-eight billion, six hundred million, four hundred ninety-one thousand, six hundred forty".