8400053778 has 16 divisors (see below), whose sum is σ = 16848249600. Its totient is φ = 2791994256.

The previous prime is 8400053773. The next prime is 8400053791. The reversal of 8400053778 is 8773500048.

It is not an unprimeable number, because it can be changed into a prime (8400053773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2003650 + ... + 2007837.

It is an arithmetic number, because the mean of its divisors is an integer number (1053015600).

Almost surely, 2^8400053778 is an apocalyptic number.

8400053778 is an abundant number, since it is smaller than the sum of its proper divisors (8448195822).

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

8400053778 is a wasteful number, since it uses less digits than its factorization.

8400053778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011841.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 8400053778 is about 91651.8072816898. The cubic root of 8400053778 is about 2032.7970516969.

The spelling of 8400053778 in words is "eight billion, four hundred million, fifty-three thousand, seven hundred seventy-eight".