1326377477 has 2 divisors, whose sum is σ = 1326377478. Its totient is φ = 1326377476.

The previous prime is 1326377467. The next prime is 1326377513. The reversal of 1326377477 is 7747736231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 715348516 + 611028961 = 26746^2 + 24719^2 .

It is a cyclic number.

It is not a de Polignac number, because 1326377477 - 2²² = 1322183173 is a prime.

It is a super-2 number, since 2×1326377477² = 3518554422985771058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1326377467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663188738 + 663188739.

It is an arithmetic number, because the mean of its divisors is an integer number (663188739).

Almost surely, 2^1326377477 is an apocalyptic number.

It is an amenable number.

1326377477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326377477 is an equidigital number, since it uses as much as digits as its factorization.

1326377477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1037232, while the sum is 47.

The square root of 1326377477 is about 36419.4656330924. The cubic root of 1326377477 is about 1098.7251006492.

The spelling of 1326377477 in words is "one billion, three hundred twenty-six million, three hundred seventy-seven thousand, four hundred seventy-seven".