647424424746 has 64 divisors (see below), whose sum is σ = 1569612902400. Its totient is φ = 196176826800.

The previous prime is 647424424739. The next prime is 647424424819.

647424424746 is a `hidden beast` number, since 64 + 74 + 2 + 4 + 42 + 474 + 6 = 666.

647424424746 is nontrivially palindromic in base 10.

647424424746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 647424424692 and 647424424701.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14632485 + ... + 14676663.

It is an arithmetic number, because the mean of its divisors is an integer number (24525201600).

Almost surely, 2^647424424746 is an apocalyptic number.

647424424746 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

647424424746 is an abundant number, since it is smaller than the sum of its proper divisors (922188477654).

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

647424424746 is a wasteful number, since it uses less digits than its factorization.

647424424746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68872 (or 68866 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 54.

The spelling of 647424424746 in words is "six hundred forty-seven billion, four hundred twenty-four million, four hundred twenty-four thousand, seven hundred forty-six".