1206774853457 has 2 divisors, whose sum is σ = 1206774853458. Its totient is φ = 1206774853456.

The previous prime is 1206774853397. The next prime is 1206774853481. The reversal of 1206774853457 is 7543584776021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1179919510081 + 26855343376 = 1086241^2 + 163876^2 .

It is a cyclic number.

It is not a de Polignac number, because 1206774853457 - 2⁶ = 1206774853393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1206774853396 and 1206774853405.

It is not a weakly prime, because it can be changed into another prime (1206774855457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603387426728 + 603387426729.

It is an arithmetic number, because the mean of its divisors is an integer number (603387426729).

Almost surely, 2^{1206774853457} is an apocalyptic number.

It is an amenable number.

1206774853457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206774853457 is an equidigital number, since it uses as much as digits as its factorization.

1206774853457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39513600, while the sum is 59.

The spelling of 1206774853457 in words is "one trillion, two hundred six billion, seven hundred seventy-four million, eight hundred fifty-three thousand, four hundred fifty-seven".