1878786125 has 16 divisors (see below), whose sum is σ = 2345977920. Its totient is φ = 1502226000.

The previous prime is 1878785977. The next prime is 1878786163. The reversal of 1878786125 is 5216878781.

It is not a de Polignac number, because 1878786125 - 2¹⁴ = 1878769741 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368846 + ... + 373904.

It is an arithmetic number, because the mean of its divisors is an integer number (146623620).

Almost surely, 2^1878786125 is an apocalyptic number.

It is an amenable number.

1878786125 is a deficient number, since it is larger than the sum of its proper divisors (467191795).

1878786125 is an equidigital number, since it uses as much as digits as its factorization.

1878786125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8045 (or 8035 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 53.

The square root of 1878786125 is about 43344.9665474551. The cubic root of 1878786125 is about 1233.9354691065.

The spelling of 1878786125 in words is "one billion, eight hundred seventy-eight million, seven hundred eighty-six thousand, one hundred twenty-five".