228937522987 has 2 divisors, whose sum is σ = 228937522988. Its totient is φ = 228937522986.

The previous prime is 228937522939. The next prime is 228937523011. The reversal of 228937522987 is 789225739822.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228937522987 is a prime.

It is not a weakly prime, because it can be changed into another prime (228937522937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114468761493 + 114468761494.

It is an arithmetic number, because the mean of its divisors is an integer number (114468761494).

Almost surely, 2^228937522987 is an apocalyptic number.

228937522987 is a deficient number, since it is larger than the sum of its proper divisors (1).

228937522987 is an equidigital number, since it uses as much as digits as its factorization.

228937522987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60963840, while the sum is 64.

The spelling of 228937522987 in words is "two hundred twenty-eight billion, nine hundred thirty-seven million, five hundred twenty-two thousand, nine hundred eighty-seven".