11941785615 has 16 divisors (see below), whose sum is σ = 19513387008. Its totient is φ = 6233442336.

The previous prime is 11941785607. The next prime is 11941785629. The reversal of 11941785615 is 51658714911.

It is not a de Polignac number, because 11941785615 - 2³ = 11941785607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8468647 + ... + 8470056.

It is an arithmetic number, because the mean of its divisors is an integer number (1219586688).

Almost surely, 2^11941785615 is an apocalyptic number.

11941785615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11941785615 is a deficient number, since it is larger than the sum of its proper divisors (7571601393).

11941785615 is a wasteful number, since it uses less digits than its factorization.

11941785615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16938758.

The product of its digits is 302400, while the sum is 48.

The spelling of 11941785615 in words is "eleven billion, nine hundred forty-one million, seven hundred eighty-five thousand, six hundred fifteen".