1377457713 has 12 divisors (see below), whose sum is σ = 1990567540. Its totient is φ = 917886816.

The previous prime is 1377457709. The next prime is 1377457729. The reversal of 1377457713 is 3177547731.

1377457713 is a `hidden beast` number, since 1 + 3 + 7 + 74 + 577 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 63250209 + 1314207504 = 7953^2 + 36252^2 .

It is not a de Polignac number, because 1377457713 - 2² = 1377457709 is a prime.

It is a super-2 number, since 2×1377457713² = 3794779502206380738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1377456713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13306 + ... + 54147.

Almost surely, 2^1377457713 is an apocalyptic number.

It is an amenable number.

1377457713 is a deficient number, since it is larger than the sum of its proper divisors (613109827).

1377457713 is a wasteful number, since it uses less digits than its factorization.

1377457713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69728 (or 69725 counting only the distinct ones).

The product of its digits is 432180, while the sum is 45.

The square root of 1377457713 is about 37114.1174352833. The cubic root of 1377457713 is about 1112.6521848451.

The spelling of 1377457713 in words is "one billion, three hundred seventy-seven million, four hundred fifty-seven thousand, seven hundred thirteen".