428057555347 has 16 divisors (see below), whose sum is σ = 442895598592. Its totient is φ = 413284563360.

The previous prime is 428057555309. The next prime is 428057555413. The reversal of 428057555347 is 743555750824.

It is a cyclic number.

It is not a de Polignac number, because 428057555347 - 2¹⁵ = 428057522579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428057555047) 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, 57017368 + ... + 57024874.

It is an arithmetic number, because the mean of its divisors is an integer number (27680974912).

Almost surely, 2^428057555347 is an apocalyptic number.

428057555347 is a deficient number, since it is larger than the sum of its proper divisors (14838043245).

428057555347 is a wasteful number, since it uses less digits than its factorization.

428057555347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11578.

The product of its (nonzero) digits is 23520000, while the sum is 55.

The spelling of 428057555347 in words is "four hundred twenty-eight billion, fifty-seven million, five hundred fifty-five thousand, three hundred forty-seven".