428076499870 has 16 divisors (see below), whose sum is σ = 775445586048. Its totient is φ = 170139958560.

The previous prime is 428076499861. The next prime is 428076499889. The reversal of 428076499870 is 78994670824.

It is a super-2 number, since 2×428076499870² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136328526 + ... + 136331665.

It is an arithmetic number, because the mean of its divisors is an integer number (48465349128).

Almost surely, 2^428076499870 is an apocalyptic number.

428076499870 is a deficient number, since it is larger than the sum of its proper divisors (347369086178).

428076499870 is a wasteful number, since it uses less digits than its factorization.

428076499870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272660355.

The product of its (nonzero) digits is 48771072, while the sum is 64.

The spelling of 428076499870 in words is "four hundred twenty-eight billion, seventy-six million, four hundred ninety-nine thousand, eight hundred seventy".