1377359469 has 6 divisors (see below), whose sum is σ = 1989519246. Its totient is φ = 918239640.

The previous prime is 1377359449. The next prime is 1377359471. The reversal of 1377359469 is 9649537731.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1371813444 + 5546025 = 37038^2 + 2355^2 .

It is not a de Polignac number, because 1377359469 - 2¹⁷ = 1377228397 is a prime.

It is a super-2 number, since 2×1377359469² = 3794238213687923922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377359429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76519962 + ... + 76519979.

It is an arithmetic number, because the mean of its divisors is an integer number (331586541).

Almost surely, 2^1377359469 is an apocalyptic number.

It is an amenable number.

1377359469 is a deficient number, since it is larger than the sum of its proper divisors (612159777).

1377359469 is a wasteful number, since it uses less digits than its factorization.

1377359469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153039947 (or 153039944 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The square root of 1377359469 is about 37112.7938721945. The cubic root of 1377359469 is about 1112.6257317644.

The spelling of 1377359469 in words is "one billion, three hundred seventy-seven million, three hundred fifty-nine thousand, four hundred sixty-nine".