1226486536787 has 4 divisors (see below), whose sum is σ = 1226547847416. Its totient is φ = 1226425226160.

The previous prime is 1226486536729. The next prime is 1226486536799. The reversal of 1226486536787 is 7876356846221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1226486536787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1226486538787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30625298 + ... + 30665319.

It is an arithmetic number, because the mean of its divisors is an integer number (306636961854).

Almost surely, 2^{1226486536787} is an apocalyptic number.

1226486536787 is a deficient number, since it is larger than the sum of its proper divisors (61310629).

1226486536787 is an equidigital number, since it uses as much as digits as its factorization.

1226486536787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61310628.

The product of its digits is 162570240, while the sum is 65.

The spelling of 1226486536787 in words is "one trillion, two hundred twenty-six billion, four hundred eighty-six million, five hundred thirty-six thousand, seven hundred eighty-seven".