1447953385820 has 12 divisors (see below), whose sum is σ = 3040702110264. Its totient is φ = 579181354320.

The previous prime is 1447953385777. The next prime is 1447953385861. The reversal of 1447953385820 is 285833597441.

It is a self number, because there is not a number n which added to its sum of digits gives 1447953385820.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36198834626 + ... + 36198834665.

It is an arithmetic number, because the mean of its divisors is an integer number (253391842522).

Almost surely, 2^{1447953385820} is an apocalyptic number.

1447953385820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1447953385820 is an abundant number, since it is smaller than the sum of its proper divisors (1592748724444).

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

1447953385820 is a wasteful number, since it uses less digits than its factorization.

1447953385820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72397669300 (or 72397669298 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 59.

The spelling of 1447953385820 in words is "one trillion, four hundred forty-seven billion, nine hundred fifty-three million, three hundred eighty-five thousand, eight hundred twenty".