31428267700 has 18 divisors (see below), whose sum is σ = 68199341126. Its totient is φ = 12571307040.

The previous prime is 31428267601. The next prime is 31428267733. The reversal of 31428267700 is 776282413.

It can be written as a sum of positive squares in 3 ways, for example, as 6723344016 + 24704923684 = 81996^2 + 157178^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157141239 + ... + 157141438.

Almost surely, 2^31428267700 is an apocalyptic number.

It is an amenable number.

31428267700 is an abundant number, since it is smaller than the sum of its proper divisors (36771073426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31428267700 is a wasteful number, since it uses less digits than its factorization.

31428267700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314282691 (or 314282684 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 31428267700 in words is "thirty-one billion, four hundred twenty-eight million, two hundred sixty-seven thousand, seven hundred".