1392785861287 has 2 divisors, whose sum is σ = 1392785861288. Its totient is φ = 1392785861286.

The previous prime is 1392785861251. The next prime is 1392785861293. The reversal of 1392785861287 is 7821685872931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1392785861287 - 2¹¹ = 1392785859239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1392785861297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696392930643 + 696392930644.

It is an arithmetic number, because the mean of its divisors is an integer number (696392930644).

Almost surely, 2^{1392785861287} is an apocalyptic number.

1392785861287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392785861287 is an equidigital number, since it uses as much as digits as its factorization.

1392785861287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81285120, while the sum is 67.

The spelling of 1392785861287 in words is "one trillion, three hundred ninety-two billion, seven hundred eighty-five million, eight hundred sixty-one thousand, two hundred eighty-seven".