1878716552 has 16 divisors (see below), whose sum is σ = 3580341900. Its totient is φ = 923958720.

The previous prime is 1878716549. The next prime is 1878716557. The reversal of 1878716552 is 2556178781.

It can be written as a sum of positive squares in 2 ways, for example, as 1817657956 + 61058596 = 42634^2 + 7814^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1878716552.

It is not an unprimeable number, because it can be changed into a prime (1878716557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1924427 + ... + 1925402.

Almost surely, 2^1878716552 is an apocalyptic number.

It is an amenable number.

1878716552 is a deficient number, since it is larger than the sum of its proper divisors (1701625348).

1878716552 is a wasteful number, since it uses less digits than its factorization.

1878716552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3849896 (or 3849892 counting only the distinct ones).

The product of its digits is 940800, while the sum is 50.

The square root of 1878716552 is about 43344.1639900921. The cubic root of 1878716552 is about 1233.9202377024.

The spelling of 1878716552 in words is "one billion, eight hundred seventy-eight million, seven hundred sixteen thousand, five hundred fifty-two".