428887772795 has 32 divisors (see below), whose sum is σ = 540202758144. Its totient is φ = 326462140800.

The previous prime is 428887772773. The next prime is 428887772821. The reversal of 428887772795 is 597277788824.

It is not a de Polignac number, because 428887772795 - 2²² = 428883578491 is a prime.

It is a super-2 number, since 2×428887772795² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26494274 + ... + 26510456.

It is an arithmetic number, because the mean of its divisors is an integer number (16881336192).

Almost surely, 2^428887772795 is an apocalyptic number.

428887772795 is a deficient number, since it is larger than the sum of its proper divisors (111314985349).

428887772795 is a wasteful number, since it uses less digits than its factorization.

428887772795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19083.

The product of its digits is 885104640, while the sum is 74.

The spelling of 428887772795 in words is "four hundred twenty-eight billion, eight hundred eighty-seven million, seven hundred seventy-two thousand, seven hundred ninety-five".