11785436201 has 32 divisors (see below), whose sum is σ = 15609065472. Its totient is φ = 8614805760.

The previous prime is 11785436197. The next prime is 11785436203. The reversal of 11785436201 is 10263458711.

It is not a de Polignac number, because 11785436201 - 2² = 11785436197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11785436203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 387200 + ... + 416526.

It is an arithmetic number, because the mean of its divisors is an integer number (487783296).

Almost surely, 2^11785436201 is an apocalyptic number.

11785436201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11785436201 is a deficient number, since it is larger than the sum of its proper divisors (3823629271).

11785436201 is a wasteful number, since it uses less digits than its factorization.

11785436201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29669.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 11785436201 in words is "eleven billion, seven hundred eighty-five million, four hundred thirty-six thousand, two hundred one".