127297740025 has 6 divisors (see below), whose sum is σ = 157849197662. Its totient is φ = 101838192000.

The previous prime is 127297740019. The next prime is 127297740029. The reversal of 127297740025 is 520047792721.

It can be written as a sum of positive squares in 3 ways, for example, as 6335682409 + 120962057616 = 79597^2 + 347796^2 .

It is not a de Polignac number, because 127297740025 - 2¹⁹ = 127297215737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127297740029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2545954776 + ... + 2545954825.

Almost surely, 2^127297740025 is an apocalyptic number.

It is an amenable number.

127297740025 is a deficient number, since it is larger than the sum of its proper divisors (30551457637).

127297740025 is an equidigital number, since it uses as much as digits as its factorization.

127297740025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091909611 (or 5091909606 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 46.

The spelling of 127297740025 in words is "one hundred twenty-seven billion, two hundred ninety-seven million, seven hundred forty thousand, twenty-five".