377749139769 has 9 divisors (see below), whose sum is σ = 545640309669. Its totient is φ = 251831530620.

The previous prime is 377749139737. The next prime is 377749139783. The reversal of 377749139769 is 967931947773.

The square root of 377749139769 is 614613.

It is a perfect power (a square), and thus also a powerful number.

377749139769 is a `hidden beast` number, since 3 + 7 + 77 + 491 + 3 + 9 + 7 + 69 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 377749139769 - 2⁵ = 377749139737 is a prime.

It is a super-2 number, since 2×377749139769² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 377749139697 and 377749139706.

It is not an unprimeable number, because it can be changed into a prime (377749139569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1741404 + ... + 1946274.

Almost surely, 2^377749139769 is an apocalyptic number.

377749139769 is the 614613-rd square number.

377749139769 is the 307307-th centered octagonal number.

It is an amenable number.

377749139769 is a deficient number, since it is larger than the sum of its proper divisors (167891169900).

377749139769 is an frugal number, since it uses more digits than its factorization.

377749139769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409748 (or 204874 counting only the distinct ones).

The product of its digits is 378071064, while the sum is 72.

The spelling of 377749139769 in words is "three hundred seventy-seven billion, seven hundred forty-nine million, one hundred thirty-nine thousand, seven hundred sixty-nine".