1077905286421 has 2 divisors, whose sum is σ = 1077905286422. Its totient is φ = 1077905286420.

The previous prime is 1077905286413. The next prime is 1077905286473. The reversal of 1077905286421 is 1246825097701.

It is an a-pointer prime, because the next prime (1077905286473) can be obtained adding 1077905286421 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 704567178225 + 373338108196 = 839385^2 + 611014^2 .

It is a cyclic number.

It is not a de Polignac number, because 1077905286421 - 2³ = 1077905286413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1077905286721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538952643210 + 538952643211.

It is an arithmetic number, because the mean of its divisors is an integer number (538952643211).

Almost surely, 2^{1077905286421} is an apocalyptic number.

It is an amenable number.

1077905286421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1077905286421 is an equidigital number, since it uses as much as digits as its factorization.

1077905286421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 1077905286421 in words is "one trillion, seventy-seven billion, nine hundred five million, two hundred eighty-six thousand, four hundred twenty-one".