8137502272489 has 2 divisors, whose sum is σ = 8137502272490. Its totient is φ = 8137502272488.

The previous prime is 8137502272477. The next prime is 8137502272541. The reversal of 8137502272489 is 9842722057318.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5673519067225 + 2463983205264 = 2381915^2 + 1569708^2 .

It is a cyclic number.

It is not a de Polignac number, because 8137502272489 - 2¹¹ = 8137502270441 is a prime.

It is not a weakly prime, because it can be changed into another prime (8137502272429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4068751136244 + 4068751136245.

It is an arithmetic number, because the mean of its divisors is an integer number (4068751136245).

Almost surely, 2^{8137502272489} is an apocalyptic number.

It is an amenable number.

8137502272489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8137502272489 is an equidigital number, since it uses as much as digits as its factorization.

8137502272489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 8137502272489 in words is "eight trillion, one hundred thirty-seven billion, five hundred two million, two hundred seventy-two thousand, four hundred eighty-nine".