1878563122 has 8 divisors (see below), whose sum is σ = 2818143900. Its totient is φ = 939181824.

The previous prime is 1878563107. The next prime is 1878563123. The reversal of 1878563122 is 2213658781.

It can be written as a sum of positive squares in 2 ways, for example, as 1874803401 + 3759721 = 43299^2 + 1939^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1878563123) 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, 23547 + ... + 65662.

Almost surely, 2^1878563122 is an apocalyptic number.

1878563122 is a deficient number, since it is larger than the sum of its proper divisors (939580778).

1878563122 is a wasteful number, since it uses less digits than its factorization.

1878563122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99740.

The product of its digits is 161280, while the sum is 43.

The square root of 1878563122 is about 43342.3940501676. The cubic root of 1878563122 is about 1233.8866464127.

The spelling of 1878563122 in words is "one billion, eight hundred seventy-eight million, five hundred sixty-three thousand, one hundred twenty-two".