1878828287 has 16 divisors (see below), whose sum is σ = 2293676352. Its totient is φ = 1502269440.

The previous prime is 1878828277. The next prime is 1878828293. The reversal of 1878828287 is 7828288781.

It is not a de Polignac number, because 1878828287 - 2⁶ = 1878828223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1878828257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56414 + ... + 83307.

It is an arithmetic number, because the mean of its divisors is an integer number (143354772).

Almost surely, 2^1878828287 is an apocalyptic number.

1878828287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1878828287 is a deficient number, since it is larger than the sum of its proper divisors (414848065).

1878828287 is a wasteful number, since it uses less digits than its factorization.

1878828287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139858.

The product of its digits is 6422528, while the sum is 59.

The square root of 1878828287 is about 43345.4528987759. The cubic root of 1878828287 is about 1233.9446993212.

The spelling of 1878828287 in words is "one billion, eight hundred seventy-eight million, eight hundred twenty-eight thousand, two hundred eighty-seven".