11945646485 has 16 divisors (see below), whose sum is σ = 14984509440. Its totient is φ = 9131166720.

The previous prime is 11945646481. The next prime is 11945646497. The reversal of 11945646485 is 58464654911.

It is not a de Polignac number, because 11945646485 - 2² = 11945646481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11945646481) 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, 475532 + ... + 500021.

It is an arithmetic number, because the mean of its divisors is an integer number (936531840).

Almost surely, 2^11945646485 is an apocalyptic number.

It is an amenable number.

11945646485 is a deficient number, since it is larger than the sum of its proper divisors (3038862955).

11945646485 is an equidigital number, since it uses as much as digits as its factorization.

11945646485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975668.

The product of its digits is 4147200, while the sum is 53.

The spelling of 11945646485 in words is "eleven billion, nine hundred forty-five million, six hundred forty-six thousand, four hundred eighty-five".