428748757323 has 4 divisors (see below), whose sum is σ = 571665009768. Its totient is φ = 285832504880.

The previous prime is 428748757321. The next prime is 428748757351. The reversal of 428748757323 is 323757847824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 428748757323 - 2¹ = 428748757321 is a prime.

It is a super-2 number, since 2×428748757323² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (428748757321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71458126218 + ... + 71458126223.

It is an arithmetic number, because the mean of its divisors is an integer number (142916252442).

Almost surely, 2^428748757323 is an apocalyptic number.

428748757323 is a deficient number, since it is larger than the sum of its proper divisors (142916252445).

428748757323 is a wasteful number, since it uses less digits than its factorization.

428748757323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142916252444.

The product of its digits is 63221760, while the sum is 60.

The spelling of 428748757323 in words is "four hundred twenty-eight billion, seven hundred forty-eight million, seven hundred fifty-seven thousand, three hundred twenty-three".