11581278298 has 8 divisors (see below), whose sum is σ = 17373148992. Its totient is φ = 5790228636.

The previous prime is 11581278263. The next prime is 11581278299. The reversal of 11581278298 is 89287218511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11581278299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168690 + ... + 227197.

It is an arithmetic number, because the mean of its divisors is an integer number (2171643624).

Almost surely, 2^11581278298 is an apocalyptic number.

11581278298 is a deficient number, since it is larger than the sum of its proper divisors (5791870694).

11581278298 is a wasteful number, since it uses less digits than its factorization.

11581278298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410516.

The product of its digits is 645120, while the sum is 52.

The spelling of 11581278298 in words is "eleven billion, five hundred eighty-one million, two hundred seventy-eight thousand, two hundred ninety-eight".