1878884725 has 12 divisors (see below), whose sum is σ = 2331072900. Its totient is φ = 1502297600.

The previous prime is 1878884717. The next prime is 1878884767. The reversal of 1878884725 is 5274888781.

It can be written as a sum of positive squares in 6 ways, for example, as 26615281 + 1852269444 = 5159^2 + 43038^2 .

It is not a de Polignac number, because 1878884725 - 2³ = 1878884717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1878884725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29445 + ... + 68005.

It is an arithmetic number, because the mean of its divisors is an integer number (194256075).

Almost surely, 2^1878884725 is an apocalyptic number.

It is an amenable number.

1878884725 is a deficient number, since it is larger than the sum of its proper divisors (452188175).

1878884725 is a wasteful number, since it uses less digits than its factorization.

1878884725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40520 (or 40515 counting only the distinct ones).

The product of its digits is 8028160, while the sum is 58.

The square root of 1878884725 is about 43346.1039194989. The cubic root of 1878884725 is about 1233.9570546589.

The spelling of 1878884725 in words is "one billion, eight hundred seventy-eight million, eight hundred eighty-four thousand, seven hundred twenty-five".