1377047768 has 8 divisors (see below), whose sum is σ = 2581964580. Its totient is φ = 688523880.

The previous prime is 1377047767. The next prime is 1377047773. The reversal of 1377047768 is 8677407731.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377047767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86065478 + ... + 86065493.

Almost surely, 2^1377047768 is an apocalyptic number.

It is an amenable number.

1377047768 is a deficient number, since it is larger than the sum of its proper divisors (1204916812).

1377047768 is a wasteful number, since it uses less digits than its factorization.

1377047768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172130977 (or 172130973 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 50.

The square root of 1377047768 is about 37108.5942606292. The cubic root of 1377047768 is about 1112.5417951390.

The spelling of 1377047768 in words is "one billion, three hundred seventy-seven million, forty-seven thousand, seven hundred sixty-eight".