115548881421 has 16 divisors (see below), whose sum is σ = 154313026560. Its totient is φ = 76908751920.

The previous prime is 115548881317. The next prime is 115548881443. The reversal of 115548881421 is 124188845511.

It is not a de Polignac number, because 115548881421 - 2²⁵ = 115515326989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115548883421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5945506 + ... + 5964908.

It is an arithmetic number, because the mean of its divisors is an integer number (9644564160).

Almost surely, 2^115548881421 is an apocalyptic number.

It is an amenable number.

115548881421 is a deficient number, since it is larger than the sum of its proper divisors (38764145139).

115548881421 is a wasteful number, since it uses less digits than its factorization.

115548881421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22496.

The product of its digits is 409600, while the sum is 48.

The spelling of 115548881421 in words is "one hundred fifteen billion, five hundred forty-eight million, eight hundred eighty-one thousand, four hundred twenty-one".