6447815054 has 16 divisors (see below), whose sum is σ = 10036002816. Its totient is φ = 3103570200.

The previous prime is 6447815051. The next prime is 6447815069. The reversal of 6447815054 is 4505187446.

It is a junction number, because it is equal to n+sod(n) for n = 6447814996 and 6447815014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6447815051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260402 + ... + 284085.

It is an arithmetic number, because the mean of its divisors is an integer number (627250176).

Almost surely, 2^6447815054 is an apocalyptic number.

6447815054 is a deficient number, since it is larger than the sum of its proper divisors (3588187762).

6447815054 is a wasteful number, since it uses less digits than its factorization.

6447815054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544711.

The product of its (nonzero) digits is 537600, while the sum is 44.

The square root of 6447815054 is about 80298.2879892218. The cubic root of 6447815054 is about 1861.2477708768.

The spelling of 6447815054 in words is "six billion, four hundred forty-seven million, eight hundred fifteen thousand, fifty-four".