11309935640 has 16 divisors (see below), whose sum is σ = 25447355280. Its totient is φ = 4523974240.

The previous prime is 11309935639. The next prime is 11309935657. The reversal of 11309935640 is 4653990311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141374156 + ... + 141374235.

It is an arithmetic number, because the mean of its divisors is an integer number (1590459705).

Almost surely, 2^11309935640 is an apocalyptic number.

11309935640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11309935640 is an abundant number, since it is smaller than the sum of its proper divisors (14137419640).

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

11309935640 is a wasteful number, since it uses less digits than its factorization.

11309935640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282748402 (or 282748398 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 41.

The spelling of 11309935640 in words is "eleven billion, three hundred nine million, nine hundred thirty-five thousand, six hundred forty".