8400053780 has 12 divisors (see below), whose sum is σ = 17640112980. Its totient is φ = 3360021504.

The previous prime is 8400053773. The next prime is 8400053791. The reversal of 8400053780 is 873500048.

It can be written as a sum of positive squares in 2 ways, for example, as 2304192004 + 6095861776 = 48002^2 + 78076^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8400053780.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 210001325 + ... + 210001364.

It is an arithmetic number, because the mean of its divisors is an integer number (1470009415).

Almost surely, 2^8400053780 is an apocalyptic number.

It is an amenable number.

8400053780 is an abundant number, since it is smaller than the sum of its proper divisors (9240059200).

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

8400053780 is a wasteful number, since it uses less digits than its factorization.

8400053780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420002698 (or 420002696 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 8400053780 is about 91651.8072926006. The cubic root of 8400053780 is about 2032.7970518582.

The spelling of 8400053780 in words is "eight billion, four hundred million, fifty-three thousand, seven hundred eighty".