12087475778701 has 4 divisors (see below), whose sum is σ = 12179746586304. Its totient is φ = 11995204971100.

The previous prime is 12087475778689. The next prime is 12087475778731. The reversal of 12087475778701 is 10787757478021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12087475778701 - 2¹¹ = 12087475776653 is a prime.

It is a super-2 number, since 2×12087475778701² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12087475778731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46135403605 + ... + 46135403866.

It is an arithmetic number, because the mean of its divisors is an integer number (3044936646576).

Almost surely, 2^{12087475778701} is an apocalyptic number.

It is an amenable number.

12087475778701 is a deficient number, since it is larger than the sum of its proper divisors (92270807603).

12087475778701 is an equidigital number, since it uses as much as digits as its factorization.

12087475778701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92270807602.

The product of its (nonzero) digits is 43025920, while the sum is 64.

The spelling of 12087475778701 in words is "twelve trillion, eighty-seven billion, four hundred seventy-five million, seven hundred seventy-eight thousand, seven hundred one".