31428600843 has 32 divisors (see below), whose sum is σ = 42668467200. Its totient is φ = 20574794240.

The previous prime is 31428600829. The next prime is 31428600871. The reversal of 31428600843 is 34800682413.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31428600843 - 2⁵ = 31428600811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31428600943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34498558 + ... + 34499468.

It is an arithmetic number, because the mean of its divisors is an integer number (1333389600).

Almost surely, 2^31428600843 is an apocalyptic number.

31428600843 is a deficient number, since it is larger than the sum of its proper divisors (11239866357).

31428600843 is a wasteful number, since it uses less digits than its factorization.

31428600843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859.

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 31428600843 in words is "thirty-one billion, four hundred twenty-eight million, six hundred thousand, eight hundred forty-three".