1377737738 has 32 divisors (see below), whose sum is σ = 2251746000. Its totient is φ = 628448256.

The previous prime is 1377737731. The next prime is 1377737773. The reversal of 1377737738 is 8377377731.

It can be written as a sum of positive squares in 8 ways, for example, as 210627169 + 1167110569 = 14513^2 + 34163^2 .

It is a super-2 number, since 2×1377737738² = 3796322549418713288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1377737738.

It is not an unprimeable number, because it can be changed into a prime (1377737731) 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 15 ways as a sum of consecutive naturals, for example, 886370 + ... + 887922.

Almost surely, 2^1377737738 is an apocalyptic number.

1377737738 is a deficient number, since it is larger than the sum of its proper divisors (874008262).

1377737738 is a wasteful number, since it uses less digits than its factorization.

1377737738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946.

The product of its digits is 3630312, while the sum is 53.

The square root of 1377737738 is about 37117.8897298863. The cubic root of 1377737738 is about 1112.7275771940.

It can be divided in two parts, 13777 and 37738, that added together give a palindrome (51515).

The spelling of 1377737738 in words is "one billion, three hundred seventy-seven million, seven hundred thirty-seven thousand, seven hundred thirty-eight".