428015531211 has 16 divisors (see below), whose sum is σ = 582004206720. Its totient is φ = 279712674560.

The previous prime is 428015531147. The next prime is 428015531219. The reversal of 428015531211 is 112135510824.

It is a cyclic number.

It is not a de Polignac number, because 428015531211 - 2⁶ = 428015531147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428015531219) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3362685 + ... + 3487646.

It is an arithmetic number, because the mean of its divisors is an integer number (36375262920).

Almost surely, 2^428015531211 is an apocalyptic number.

428015531211 is a deficient number, since it is larger than the sum of its proper divisors (153988675509).

428015531211 is a wasteful number, since it uses less digits than its factorization.

428015531211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6850746.

The product of its (nonzero) digits is 9600, while the sum is 33.

The spelling of 428015531211 in words is "four hundred twenty-eight billion, fifteen million, five hundred thirty-one thousand, two hundred eleven".