8473778100 has 108 divisors (see below), whose sum is σ = 26957205184. Its totient is φ = 2225931840.

The previous prime is 8473778069. The next prime is 8473778141. The reversal of 8473778100 is 18773748.

It is a happy number.

8473778100 is a `hidden beast` number, since 8 + 473 + 7 + 78 + 100 = 666.

It is a super-2 number, since 2×8473778100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 35 ways as a sum of consecutive naturals, for example, 9964 + ... + 130563.

Almost surely, 2^8473778100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8473778100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13478602592).

8473778100 is an abundant number, since it is smaller than the sum of its proper divisors (18483427084).

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

8473778100 is a wasteful number, since it uses less digits than its factorization.

8473778100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140614 (or 140604 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 8473778100 is about 92053.1265085548. The cubic root of 8473778100 is about 2038.7267862598.

The spelling of 8473778100 in words is "eight billion, four hundred seventy-three million, seven hundred seventy-eight thousand, one hundred".