11618326785 has 64 divisors (see below), whose sum is σ = 20817377280. Its totient is φ = 5494487040.

The previous prime is 11618326627. The next prime is 11618326793. The reversal of 11618326785 is 58762381611.

It is not a de Polignac number, because 11618326785 - 2⁸ = 11618326529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 821151 + ... + 835179.

It is an arithmetic number, because the mean of its divisors is an integer number (325271520).

Almost surely, 2^11618326785 is an apocalyptic number.

11618326785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11618326785 is a deficient number, since it is larger than the sum of its proper divisors (9199050495).

11618326785 is a wasteful number, since it uses less digits than its factorization.

11618326785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14218.

The product of its digits is 483840, while the sum is 48.

The spelling of 11618326785 in words is "eleven billion, six hundred eighteen million, three hundred twenty-six thousand, seven hundred eighty-five".