1377104728 has 8 divisors (see below), whose sum is σ = 2582071380. Its totient is φ = 688552360.

The previous prime is 1377104719. The next prime is 1377104731. The reversal of 1377104728 is 8274017731.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86069038 + ... + 86069053.

Almost surely, 2^1377104728 is an apocalyptic number.

It is an amenable number.

1377104728 is a deficient number, since it is larger than the sum of its proper divisors (1204966652).

1377104728 is a wasteful number, since it uses less digits than its factorization.

1377104728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172138097 (or 172138093 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 1377104728 is about 37109.3617298924. The cubic root of 1377104728 is about 1112.5571345988.

The spelling of 1377104728 in words is "one billion, three hundred seventy-seven million, one hundred four thousand, seven hundred twenty-eight".