1206774853397 has 2 divisors, whose sum is σ = 1206774853398. Its totient is φ = 1206774853396.

The previous prime is 1206774853393. The next prime is 1206774853457. The reversal of 1206774853397 is 7933584776021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 976695381841 + 230079471556 = 988279^2 + 479666^2 .

It is a cyclic number.

It is not a de Polignac number, because 1206774853397 - 2² = 1206774853393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1206774853393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603387426698 + 603387426699.

It is an arithmetic number, because the mean of its divisors is an integer number (603387426699).

It is a 1-persistent number, because it is pandigital, but 2⋅1206774853397 = 2413549706794 is not.

Almost surely, 2^{1206774853397} is an apocalyptic number.

It is an amenable number.

1206774853397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206774853397 is an equidigital number, since it uses as much as digits as its factorization.

1206774853397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53343360, while the sum is 62.

The spelling of 1206774853397 in words is "one trillion, two hundred six billion, seven hundred seventy-four million, eight hundred fifty-three thousand, three hundred ninety-seven".