1878766002 has 40 divisors (see below), whose sum is σ = 4220471772. Its totient is φ = 624672000.

The previous prime is 1878765979. The next prime is 1878766007. The reversal of 1878766002 is 2006678781.

It can be written as a sum of positive squares in 2 ways, for example, as 1496993481 + 381772521 = 38691^2 + 19539^2 .

It is not an unprimeable number, because it can be changed into a prime (1878766007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50502 + ... + 79422.

Almost surely, 2^1878766002 is an apocalyptic number.

1878766002 is an abundant number, since it is smaller than the sum of its proper divisors (2341705770).

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

1878766002 is a wasteful number, since it uses less digits than its factorization.

1878766002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29336 (or 29327 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 1878766002 is about 43344.7344206883. The cubic root of 1878766002 is about 1233.9310636783.

The spelling of 1878766002 in words is "one billion, eight hundred seventy-eight million, seven hundred sixty-six thousand, two".