6447788363146 has 16 divisors (see below), whose sum is σ = 10421906340384. Its totient is φ = 2974117117104.

The previous prime is 6447788363129. The next prime is 6447788363153. The reversal of 6447788363146 is 6413638877446.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74339340 + ... + 74426023.

It is an arithmetic number, because the mean of its divisors is an integer number (651369146274).

Almost surely, 2^{6447788363146} is an apocalyptic number.

6447788363146 is a deficient number, since it is larger than the sum of its proper divisors (3974117977238).

6447788363146 is a wasteful number, since it uses less digits than its factorization.

6447788363146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148767045.

The product of its digits is 390168576, while the sum is 67.

The spelling of 6447788363146 in words is "six trillion, four hundred forty-seven billion, seven hundred eighty-eight million, three hundred sixty-three thousand, one hundred forty-six".