11427977593 has 8 divisors (see below), whose sum is σ = 12042916416. Its totient is φ = 10822878000.

The previous prime is 11427977569. The next prime is 11427977599. The reversal of 11427977593 is 39577972411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11427977593 is a prime.

It is a super-2 number, since 2×11427977593² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11427977599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2457423 + ... + 2462068.

It is an arithmetic number, because the mean of its divisors is an integer number (1505364552).

Almost surely, 2^11427977593 is an apocalyptic number.

It is an amenable number.

11427977593 is a deficient number, since it is larger than the sum of its proper divisors (614938823).

11427977593 is a wasteful number, since it uses less digits than its factorization.

11427977593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919615.

The product of its digits is 3333960, while the sum is 55.

The spelling of 11427977593 in words is "eleven billion, four hundred twenty-seven million, nine hundred seventy-seven thousand, five hundred ninety-three".