127753345477 has 12 divisors (see below), whose sum is σ = 131335272516. Its totient is φ = 124266648960.

The previous prime is 127753345471. The next prime is 127753345481. The reversal of 127753345477 is 774543357721.

It is a happy number.

It is a Cunningham number, because it is equal to 357426²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 12152196 + 127741193281 = 3486^2 + 357409^2 .

It is not a de Polignac number, because 127753345477 - 2¹¹ = 127753343429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127753345471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6069223 + ... + 6090235.

It is an arithmetic number, because the mean of its divisors is an integer number (10944606043).

Almost surely, 2^127753345477 is an apocalyptic number.

It is an amenable number.

127753345477 is a deficient number, since it is larger than the sum of its proper divisors (3581927039).

127753345477 is an equidigital number, since it uses as much as digits as its factorization.

127753345477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25528 (or 25491 counting only the distinct ones).

The product of its digits is 17287200, while the sum is 55.

The spelling of 127753345477 in words is "one hundred twenty-seven billion, seven hundred fifty-three million, three hundred forty-five thousand, four hundred seventy-seven".