487980128437 has 2 divisors, whose sum is σ = 487980128438. Its totient is φ = 487980128436.

The previous prime is 487980128371. The next prime is 487980128453. The reversal of 487980128437 is 734821089784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 476775059121 + 11205069316 = 690489^2 + 105854^2 .

It is a cyclic number.

It is not a de Polignac number, because 487980128437 - 2³¹ = 485832644789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487980128737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243990064218 + 243990064219.

It is an arithmetic number, because the mean of its divisors is an integer number (243990064219).

Almost surely, 2^487980128437 is an apocalyptic number.

It is an amenable number.

487980128437 is a deficient number, since it is larger than the sum of its proper divisors (1).

487980128437 is an equidigital number, since it uses as much as digits as its factorization.

487980128437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 487980128437 in words is "four hundred eighty-seven billion, nine hundred eighty million, one hundred twenty-eight thousand, four hundred thirty-seven".