11902020078 has 32 divisors (see below), whose sum is σ = 25959628800. Its totient is φ = 3615801696.

The previous prime is 11902020041. The next prime is 11902020089. The reversal of 11902020078 is 87002020911.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 959598 + ... + 971921.

It is an arithmetic number, because the mean of its divisors is an integer number (811238400).

Almost surely, 2^11902020078 is an apocalyptic number.

11902020078 is an abundant number, since it is smaller than the sum of its proper divisors (14057608722).

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

11902020078 is a wasteful number, since it uses less digits than its factorization.

11902020078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931616.

The product of its (nonzero) digits is 2016, while the sum is 30.

Adding to 11902020078 its reverse (87002020911), we get a palindrome (98904040989).

The spelling of 11902020078 in words is "eleven billion, nine hundred two million, twenty thousand, seventy-eight".