127653547401 has 20 divisors (see below), whose sum is σ = 192989844432. Its totient is φ = 84077030808.

The previous prime is 127653547397. The next prime is 127653547403. The reversal of 127653547401 is 104745356721.

127653547401 is a `hidden beast` number, since 1 + 2 + 7 + 65 + 3 + 547 + 40 + 1 = 666.

It is not a de Polignac number, because 127653547401 - 2² = 127653547397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127653547403) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9487071 + ... + 9500516.

Almost surely, 2^127653547401 is an apocalyptic number.

It is an amenable number.

127653547401 is a deficient number, since it is larger than the sum of its proper divisors (65336297031).

127653547401 is an equidigital number, since it uses as much as digits as its factorization.

127653547401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18987682 (or 18987673 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 127653547401 in words is "one hundred twenty-seven billion, six hundred fifty-three million, five hundred forty-seven thousand, four hundred one".