649494905446 has 8 divisors (see below), whose sum is σ = 974318515200. Its totient is φ = 324722067048.

The previous prime is 649494905359. The next prime is 649494905497. The reversal of 649494905446 is 644509494946.

649494905446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 12660841 + ... + 12712036.

It is an arithmetic number, because the mean of its divisors is an integer number (121789814400).

Almost surely, 2^649494905446 is an apocalyptic number.

649494905446 is a deficient number, since it is larger than the sum of its proper divisors (324823609754).

649494905446 is a wasteful number, since it uses less digits than its factorization.

649494905446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25385678.

The product of its (nonzero) digits is 134369280, while the sum is 64.

The spelling of 649494905446 in words is "six hundred forty-nine billion, four hundred ninety-four million, nine hundred five thousand, four hundred forty-six".