31428716002 has 8 divisors (see below), whose sum is σ = 47174654556. Its totient is φ = 15703831152.

The previous prime is 31428715979. The next prime is 31428716003. The reversal of 31428716002 is 20061782413.

It can be written as a sum of positive squares in 2 ways, for example, as 29635278201 + 1793437801 = 172149^2 + 42349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (31428716003) 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, 5259693 + ... + 5265664.

Almost surely, 2^31428716002 is an apocalyptic number.

31428716002 is a deficient number, since it is larger than the sum of its proper divisors (15745938554).

31428716002 is a wasteful number, since it uses less digits than its factorization.

31428716002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10526852.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 31428716002 in words is "thirty-one billion, four hundred twenty-eight million, seven hundred sixteen thousand, two".