115754338048561 has 3 divisors (see below), whose sum is σ = 115754348807481. Its totient is φ = 115754327289642.

The previous prime is 115754338048541. The next prime is 115754338048589. The reversal of 115754338048561 is 165840833457511.

The square root of 115754338048561 is 10758919.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 115754338048561 - 2²³ = 115754329659953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115754338048561.

It is not an unprimeable number, because it can be changed into a prime (115754338048541) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5379460 + ... + 16138378.

It is an arithmetic number, because the mean of its divisors is an integer number (38584782935827).

Almost surely, 2^{115754338048561} is an apocalyptic number.

115754338048561 is the 10758919-th square number.

115754338048561 is the 5379460-th centered octagonal number.

It is an amenable number.

115754338048561 is a deficient number, since it is larger than the sum of its proper divisors (10758920).

115754338048561 is an frugal number, since it uses more digits than its factorization.

115754338048561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21517838 (or 10758919 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 61.

The spelling of 115754338048561 in words is "one hundred fifteen trillion, seven hundred fifty-four billion, three hundred thirty-eight million, forty-eight thousand, five hundred sixty-one".