1284556195097 has 12 divisors (see below), whose sum is σ = 1498285788516. Its totient is φ = 1098096279840.

The previous prime is 1284556195081. The next prime is 1284556195099. The reversal of 1284556195097 is 7905916554821.

It can be written as a sum of positive squares in 2 ways, for example, as 381554525401 + 903001669696 = 617701^2 + 950264^2 .

It is not a de Polignac number, because 1284556195097 - 2⁴ = 1284556195081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1284556195099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35123054 + ... + 35159607.

It is an arithmetic number, because the mean of its divisors is an integer number (124857149043).

Almost surely, 2^{1284556195097} is an apocalyptic number.

It is an amenable number.

1284556195097 is a deficient number, since it is larger than the sum of its proper divisors (213729593419).

1284556195097 is an equidigital number, since it uses as much as digits as its factorization.

1284556195097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70283048 (or 70283041 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 62.

The spelling of 1284556195097 in words is "one trillion, two hundred eighty-four billion, five hundred fifty-six million, one hundred ninety-five thousand, ninety-seven".