6259947840 has 112 divisors (see below), whose sum is σ = 22083735360. Its totient is φ = 1669317120.

The previous prime is 6259947839. The next prime is 6259947847. The reversal of 6259947840 is 487499526.

6259947840 is a `hidden beast` number, since 6 + 2 + 599 + 4 + 7 + 8 + 40 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6259947847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353626 + ... + 370905.

Almost surely, 2^6259947840 is an apocalyptic number.

6259947840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6259947840 is an abundant number, since it is smaller than the sum of its proper divisors (15823787520).

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

6259947840 is a wasteful number, since it uses less digits than its factorization.

6259947840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724557 (or 724541 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The square root of 6259947840 is about 79119.8321535126. The cubic root of 6259947840 is about 1842.9925154361.

The spelling of 6259947840 in words is "six billion, two hundred fifty-nine million, nine hundred forty-seven thousand, eight hundred forty".