1878207264 has 84 divisors (see below), whose sum is σ = 5544113526. Its totient is φ = 626061312.

The previous prime is 1878207257. The next prime is 1878207299. The reversal of 1878207264 is 4627028781.

1878207264 is a `hidden beast` number, since 187 + 8 + 207 + 264 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1875582864 + 2624400 = 43308^2 + 1620^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 16929 + ... + 63584.

Almost surely, 2^1878207264 is an apocalyptic number.

It is an amenable number.

1878207264 is an abundant number, since it is smaller than the sum of its proper divisors (3665906262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1878207264 is an frugal number, since it uses more digits than its factorization.

1878207264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80541 (or 80518 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 1878207264 is about 43338.2886602598. The cubic root of 1878207264 is about 1233.8087293853.

The spelling of 1878207264 in words is "one billion, eight hundred seventy-eight million, two hundred seven thousand, two hundred sixty-four".