1447747474478 has 8 divisors (see below), whose sum is σ = 2171661665472. Its totient is φ = 723860252656.

The previous prime is 1447747474339. The next prime is 1447747474501. The reversal of 1447747474478 is 8744747477441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1447747474478² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6607550 + ... + 6823137.

It is an arithmetic number, because the mean of its divisors is an integer number (271457708184).

Almost surely, 2^{1447747474478} is an apocalyptic number.

1447747474478 is a deficient number, since it is larger than the sum of its proper divisors (723914190994).

1447747474478 is a wasteful number, since it uses less digits than its factorization.

1447747474478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13484586.

The product of its digits is 550731776, while the sum is 68.

The spelling of 1447747474478 in words is "one trillion, four hundred forty-seven billion, seven hundred forty-seven million, four hundred seventy-four thousand, four hundred seventy-eight".