1878387225283 has 4 divisors (see below), whose sum is σ = 1892098081080. Its totient is φ = 1864676369488.

The previous prime is 1878387225271. The next prime is 1878387225289. The reversal of 1878387225283 is 3825227838781.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1878387225283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1878387225289) 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, 6855427693 + ... + 6855427966.

It is an arithmetic number, because the mean of its divisors is an integer number (473024520270).

Almost surely, 2^{1878387225283} is an apocalyptic number.

1878387225283 is a deficient number, since it is larger than the sum of its proper divisors (13710855797).

1878387225283 is a wasteful number, since it uses less digits than its factorization.

1878387225283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13710855796.

The product of its digits is 72253440, while the sum is 64.

The spelling of 1878387225283 in words is "one trillion, eight hundred seventy-eight billion, three hundred eighty-seven million, two hundred twenty-five thousand, two hundred eighty-three".