1228461877065 has 16 divisors (see below), whose sum is σ = 1974353084928. Its totient is φ = 652241640576.

The previous prime is 1228461877039. The next prime is 1228461877127. The reversal of 1228461877065 is 5607781648221.

It is not a de Polignac number, because 1228461877065 - 2⁸ = 1228461876809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1228461876996 and 1228461877014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183623244 + ... + 183629933.

It is an arithmetic number, because the mean of its divisors is an integer number (123397067808).

Almost surely, 2^{1228461877065} is an apocalyptic number.

1228461877065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1228461877065 is a deficient number, since it is larger than the sum of its proper divisors (745891207863).

1228461877065 is a wasteful number, since it uses less digits than its factorization.

1228461877065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367253408.

The product of its (nonzero) digits is 9031680, while the sum is 57.

The spelling of 1228461877065 in words is "one trillion, two hundred twenty-eight billion, four hundred sixty-one million, eight hundred seventy-seven thousand, sixty-five".