127800261545 has 48 divisors (see below), whose sum is σ = 176946933888. Its totient is φ = 87866311680.

The previous prime is 127800261541. The next prime is 127800261557. The reversal of 127800261545 is 545162008721.

It is not a de Polignac number, because 127800261545 - 2² = 127800261541 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127800261541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9662777 + ... + 9675993.

It is an arithmetic number, because the mean of its divisors is an integer number (3686394456).

Almost surely, 2^127800261545 is an apocalyptic number.

It is an amenable number.

127800261545 is a deficient number, since it is larger than the sum of its proper divisors (49146672343).

127800261545 is a wasteful number, since it uses less digits than its factorization.

127800261545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13758 (or 13739 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 127800261545 in words is "one hundred twenty-seven billion, eight hundred million, two hundred sixty-one thousand, five hundred forty-five".