6246778500 has 144 divisors (see below), whose sum is σ = 20001596160. Its totient is φ = 1640865600.

The previous prime is 6246778477. The next prime is 6246778513. The reversal of 6246778500 is 58776426.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 291141 + ... + 311859.

Almost surely, 2^6246778500 is an apocalyptic number.

6246778500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6246778500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10000798080).

6246778500 is an abundant number, since it is smaller than the sum of its proper divisors (13754817660).

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

6246778500 is a wasteful number, since it uses less digits than its factorization.

6246778500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20811 (or 20796 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 6246778500 is about 79036.5643231030. The cubic root of 6246778500 is about 1841.6992120627.

The spelling of 6246778500 in words is "six billion, two hundred forty-six million, seven hundred seventy-eight thousand, five hundred".