11640697793 has 16 divisors (see below), whose sum is σ = 12509816256. Its totient is φ = 10792826880.

The previous prime is 11640697777. The next prime is 11640697801. The reversal of 11640697793 is 39779604611.

It is a cyclic number.

It is not a de Polignac number, because 11640697793 - 2⁴ = 11640697777 is a prime.

It is a super-4 number, since 4×11640697793⁴ (a number of 41 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11640697703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486398 + ... + 509768.

It is an arithmetic number, because the mean of its divisors is an integer number (781863516).

Almost surely, 2^11640697793 is an apocalyptic number.

It is an amenable number.

11640697793 is a deficient number, since it is larger than the sum of its proper divisors (869118463).

11640697793 is a wasteful number, since it uses less digits than its factorization.

11640697793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23824.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The spelling of 11640697793 in words is "eleven billion, six hundred forty million, six hundred ninety-seven thousand, seven hundred ninety-three".