6248778426 has 64 divisors (see below), whose sum is σ = 15168936960. Its totient is φ = 1891021680.

The previous prime is 6248778413. The next prime is 6248778443.

It is a happy number.

6248778426 is a `hidden beast` number, since 62 + 487 + 7 + 84 + 26 = 666.

6248778426 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460795 + ... + 474161.

It is an arithmetic number, because the mean of its divisors is an integer number (237014640).

Almost surely, 2^6248778426 is an apocalyptic number.

6248778426 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6248778426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7584468480).

6248778426 is an abundant number, since it is smaller than the sum of its proper divisors (8920158534).

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

6248778426 is a wasteful number, since it uses less digits than its factorization.

6248778426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14176 (or 14170 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The square root of 6248778426 is about 79049.2152143208. The cubic root of 6248778426 is about 1841.8957330449.

The spelling of 6248778426 in words is "six billion, two hundred forty-eight million, seven hundred seventy-eight thousand, four hundred twenty-six".