1377117825 has 12 divisors (see below), whose sum is σ = 2276834928. Its totient is φ = 734462800.

The previous prime is 1377117817. The next prime is 1377117857. The reversal of 1377117825 is 5287117731.

It is not a de Polignac number, because 1377117825 - 2³ = 1377117817 is a prime.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 9180711 + ... + 9180860.

It is an arithmetic number, because the mean of its divisors is an integer number (189736244).

Almost surely, 2^1377117825 is an apocalyptic number.

1377117825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1377117825 is a deficient number, since it is larger than the sum of its proper divisors (899717103).

1377117825 is a wasteful number, since it uses less digits than its factorization.

1377117825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18361584 (or 18361579 counting only the distinct ones).

The product of its digits is 82320, while the sum is 42.

The square root of 1377117825 is about 37109.5381943780. The cubic root of 1377117825 is about 1112.5606615914.

The spelling of 1377117825 in words is "one billion, three hundred seventy-seven million, one hundred seventeen thousand, eight hundred twenty-five".