1878468925 has 6 divisors (see below), whose sum is σ = 2329301498. Its totient is φ = 1502775120.

The previous prime is 1878468899. The next prime is 1878468971. The reversal of 1878468925 is 5298648781.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 194351481 + 1684117444 = 13941^2 + 41038^2 .

It is not a de Polignac number, because 1878468925 - 2⁹ = 1878468413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1878468925.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37569354 + ... + 37569403.

Almost surely, 2^1878468925 is an apocalyptic number.

It is an amenable number.

1878468925 is a deficient number, since it is larger than the sum of its proper divisors (450832573).

1878468925 is an equidigital number, since it uses as much as digits as its factorization.

1878468925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75138767 (or 75138762 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 58.

The square root of 1878468925 is about 43341.3073752973. The cubic root of 1878468925 is about 1233.8660224294.

The spelling of 1878468925 in words is "one billion, eight hundred seventy-eight million, four hundred sixty-eight thousand, nine hundred twenty-five".