127783508425 has 6 divisors (see below), whose sum is σ = 158451550478. Its totient is φ = 102226806720.

The previous prime is 127783508401. The next prime is 127783508431. The reversal of 127783508425 is 524805387721.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2473172361 + 125310336064 = 49731^2 + 353992^2 .

It is not a de Polignac number, because 127783508425 - 2¹³ = 127783500233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2555670144 + ... + 2555670193.

Almost surely, 2^127783508425 is an apocalyptic number.

It is an amenable number.

127783508425 is a deficient number, since it is larger than the sum of its proper divisors (30668042053).

127783508425 is an equidigital number, since it uses as much as digits as its factorization.

127783508425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111340347 (or 5111340342 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 52.

The spelling of 127783508425 in words is "one hundred twenty-seven billion, seven hundred eighty-three million, five hundred eight thousand, four hundred twenty-five".