11649293568 has 108 divisors (see below), whose sum is σ = 36641299968. Its totient is φ = 3530081280.

The previous prime is 11649293563. The next prime is 11649293569. The reversal of 11649293568 is 86539294611.

11649293568 is a `hidden beast` number, since 1 + 1 + 6 + 492 + 93 + 5 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11649293563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204480 + ... + 255167.

It is an arithmetic number, because the mean of its divisors is an integer number (339271296).

Almost surely, 2^11649293568 is an apocalyptic number.

11649293568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11649293568 is an abundant number, since it is smaller than the sum of its proper divisors (24992006400).

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

11649293568 is a wasteful number, since it uses less digits than its factorization.

11649293568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459680 (or 459663 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The spelling of 11649293568 in words is "eleven billion, six hundred forty-nine million, two hundred ninety-three thousand, five hundred sixty-eight".