428153971729 has 16 divisors (see below), whose sum is σ = 476956765440. Its totient is φ = 381069081360.

The previous prime is 428153971703. The next prime is 428153971783. The reversal of 428153971729 is 927179351824.

It is not a de Polignac number, because 428153971729 - 2³⁷ = 290715018257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428153971799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1661899 + ... + 1902160.

It is an arithmetic number, because the mean of its divisors is an integer number (29809797840).

Almost surely, 2^428153971729 is an apocalyptic number.

It is an amenable number.

428153971729 is a deficient number, since it is larger than the sum of its proper divisors (48802793711).

428153971729 is a wasteful number, since it uses less digits than its factorization.

428153971729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564300.

The product of its digits is 7620480, while the sum is 58.

The spelling of 428153971729 in words is "four hundred twenty-eight billion, one hundred fifty-three million, nine hundred seventy-one thousand, seven hundred twenty-nine".