127620713545 has 32 divisors (see below), whose sum is σ = 167728264704. Its totient is φ = 92643091200.

The previous prime is 127620713533. The next prime is 127620713593. The reversal of 127620713545 is 545317026721.

It is a happy number.

It is not a de Polignac number, because 127620713545 - 2⁵ = 127620713513 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7409914 + ... + 7427116.

It is an arithmetic number, because the mean of its divisors is an integer number (5241508272).

Almost surely, 2^127620713545 is an apocalyptic number.

It is an amenable number.

127620713545 is a deficient number, since it is larger than the sum of its proper divisors (40107551159).

127620713545 is a wasteful number, since it uses less digits than its factorization.

127620713545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19153.

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 127620713545 in words is "one hundred twenty-seven billion, six hundred twenty million, seven hundred thirteen thousand, five hundred forty-five".