428931337027 has 4 divisors (see below), whose sum is σ = 434972623536. Its totient is φ = 422890050520.

The previous prime is 428931337001. The next prime is 428931337061. The reversal of 428931337027 is 720733139824.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428931337027 is a prime.

It is a super-2 number, since 2×428931337027² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428931337097) 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, 3020643148 + ... + 3020643289.

It is an arithmetic number, because the mean of its divisors is an integer number (108743155884).

Almost surely, 2^428931337027 is an apocalyptic number.

428931337027 is a deficient number, since it is larger than the sum of its proper divisors (6041286509).

428931337027 is an equidigital number, since it uses as much as digits as its factorization.

428931337027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6041286508.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 428931337027 in words is "four hundred twenty-eight billion, nine hundred thirty-one million, three hundred thirty-seven thousand, twenty-seven".