1377465589 has 2 divisors, whose sum is σ = 1377465590. Its totient is φ = 1377465588.

The previous prime is 1377465587. The next prime is 1377465619. The reversal of 1377465589 is 9855647731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1256135364 + 121330225 = 35442^2 + 11015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1377465589 - 2¹ = 1377465587 is a prime.

It is a super-2 number, since 2×1377465589² = 3794822897758233842, which contains 22 as substring.

Together with 1377465587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1377465587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688732794 + 688732795.

It is an arithmetic number, because the mean of its divisors is an integer number (688732795).

Almost surely, 2^1377465589 is an apocalyptic number.

It is an amenable number.

1377465589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377465589 is an equidigital number, since it uses as much as digits as its factorization.

1377465589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6350400, while the sum is 55.

The square root of 1377465589 is about 37114.2235403086. The cubic root of 1377465589 is about 1112.6543054745.

The spelling of 1377465589 in words is "one billion, three hundred seventy-seven million, four hundred sixty-five thousand, five hundred eighty-nine".