428024088491 has 8 divisors (see below), whose sum is σ = 441845437824. Its totient is φ = 414203621760.

The previous prime is 428024088431. The next prime is 428024088509. The reversal of 428024088491 is 194880420824.

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 428024088491 - 2³⁸ = 153146181547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428024088431) 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, 846995 + ... + 1254371.

It is an arithmetic number, because the mean of its divisors is an integer number (55230679728).

Almost surely, 2^428024088491 is an apocalyptic number.

428024088491 is a deficient number, since it is larger than the sum of its proper divisors (13821349333).

428024088491 is a wasteful number, since it uses less digits than its factorization.

428024088491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441301.

The product of its (nonzero) digits is 1179648, while the sum is 50.

The spelling of 428024088491 in words is "four hundred twenty-eight billion, twenty-four million, eighty-eight thousand, four hundred ninety-one".