28237313002 has 16 divisors (see below), whose sum is σ = 42469547400. Its totient is φ = 14080822272.

The previous prime is 28237312997. The next prime is 28237313009. The reversal of 28237313002 is 20031373282.

It can be written as a sum of positive squares in 4 ways, for example, as 19132145761 + 9105167241 = 138319^2 + 95421^2 .

It is not an unprimeable number, because it can be changed into a prime (28237313009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3502408 + ... + 3510460.

Almost surely, 2^28237313002 is an apocalyptic number.

28237313002 is a deficient number, since it is larger than the sum of its proper divisors (14232234398).

28237313002 is a wasteful number, since it uses less digits than its factorization.

28237313002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12537.

The product of its (nonzero) digits is 12096, while the sum is 31.

Adding to 28237313002 its reverse (20031373282), we get a palindrome (48268686284).

The spelling of 28237313002 in words is "twenty-eight billion, two hundred thirty-seven million, three hundred thirteen thousand, two".