1378766925 has 36 divisors (see below), whose sum is σ = 2482531584. Its totient is φ = 731469600.

The previous prime is 1378766903. The next prime is 1378766933. The reversal of 1378766925 is 5296678731.

It is not a de Polignac number, because 1378766925 - 2⁹ = 1378766413 is a prime.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 26934 + ... + 59016.

Almost surely, 2^1378766925 is an apocalyptic number.

1378766925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1378766925 is a deficient number, since it is larger than the sum of its proper divisors (1103764659).

1378766925 is a wasteful number, since it uses less digits than its factorization.

1378766925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32290 (or 32282 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 1378766925 is about 37131.7509013513. The cubic root of 1378766925 is about 1113.0045819492.

The spelling of 1378766925 in words is "one billion, three hundred seventy-eight million, seven hundred sixty-six thousand, nine hundred twenty-five".