11615478201858 has 16 divisors (see below), whose sum is σ = 23291611646976. Its totient is φ = 3861716860080.

The previous prime is 11615478201853. The next prime is 11615478201883. The reversal of 11615478201858 is 85810287451611.

It is a junction number, because it is equal to n+sod(n) for n = 11615478201798 and 11615478201807.

It is not an unprimeable number, because it can be changed into a prime (11615478201853) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2527299313 + ... + 2527303908.

It is an arithmetic number, because the mean of its divisors is an integer number (1455725727936).

Almost surely, 2^{11615478201858} is an apocalyptic number.

11615478201858 is an abundant number, since it is smaller than the sum of its proper divisors (11676133445118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11615478201858 is a wasteful number, since it uses less digits than its factorization.

11615478201858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5054603609.

The product of its (nonzero) digits is 4300800, while the sum is 57.

The spelling of 11615478201858 in words is "eleven trillion, six hundred fifteen billion, four hundred seventy-eight million, two hundred one thousand, eight hundred fifty-eight".