6264244042440 has 64 divisors (see below), whose sum is σ = 18807778800000. Its totient is φ = 1669127596032.

The previous prime is 6264244042411. The next prime is 6264244042447. The reversal of 6264244042440 is 442404424626.

It is a junction number, because it is equal to n+sod(n) for n = 6264244042392 and 6264244042401.

It is not an unprimeable number, because it can be changed into a prime (6264244042447) 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, 20747652 + ... + 21047411.

It is an arithmetic number, because the mean of its divisors is an integer number (293871543750).

Almost surely, 2^{6264244042440} is an apocalyptic number.

6264244042440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6264244042440 is an abundant number, since it is smaller than the sum of its proper divisors (12543534757560).

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

6264244042440 is a wasteful number, since it uses less digits than its factorization.

6264244042440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41796326 (or 41796322 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 42.

The spelling of 6264244042440 in words is "six trillion, two hundred sixty-four billion, two hundred forty-four million, forty-two thousand, four hundred forty".