31428574286 has 4 divisors (see below), whose sum is σ = 47142861432. Its totient is φ = 15714287142.

The previous prime is 31428574283. The next prime is 31428574301. The reversal of 31428574286 is 68247582413.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31428574283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7857143570 + ... + 7857143573.

It is an arithmetic number, because the mean of its divisors is an integer number (11785715358).

Almost surely, 2^31428574286 is an apocalyptic number.

31428574286 is a deficient number, since it is larger than the sum of its proper divisors (15714287146).

31428574286 is a wasteful number, since it uses less digits than its factorization.

31428574286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15714287145.

The product of its digits is 2580480, while the sum is 50.

The spelling of 31428574286 in words is "thirty-one billion, four hundred twenty-eight million, five hundred seventy-four thousand, two hundred eighty-six".