428379828827 has 8 divisors (see below), whose sum is σ = 447511294464. Its totient is φ = 409290551208.

The previous prime is 428379828823. The next prime is 428379828853. The reversal of 428379828827 is 728828973824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428379828827 - 2² = 428379828823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428379828823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10526243 + ... + 10566860.

It is an arithmetic number, because the mean of its divisors is an integer number (55938911808).

Almost surely, 2^428379828827 is an apocalyptic number.

428379828827 is a deficient number, since it is larger than the sum of its proper divisors (19131465637).

428379828827 is a wasteful number, since it uses less digits than its factorization.

428379828827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21094009.

The product of its digits is 173408256, while the sum is 68.

The spelling of 428379828827 in words is "four hundred twenty-eight billion, three hundred seventy-nine million, eight hundred twenty-eight thousand, eight hundred twenty-seven".