428972186079 has 24 divisors (see below), whose sum is σ = 636485352672. Its totient is φ = 278203170240.

The previous prime is 428972186077. The next prime is 428972186131. The reversal of 428972186079 is 970681279824.

428972186079 is a `hidden beast` number, since 4 + 2 + 8 + 9 + 7 + 2 + 18 + 607 + 9 = 666.

It is not a de Polignac number, because 428972186079 - 2¹ = 428972186077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428972186077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1827742 + ... + 2049044.

It is an arithmetic number, because the mean of its divisors is an integer number (26520223028).

Almost surely, 2^428972186079 is an apocalyptic number.

428972186079 is a deficient number, since it is larger than the sum of its proper divisors (207513166593).

428972186079 is a wasteful number, since it uses less digits than its factorization.

428972186079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227167 (or 227164 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 428972186079 in words is "four hundred twenty-eight billion, nine hundred seventy-two million, one hundred eighty-six thousand, seventy-nine".