649498894946 has 16 divisors (see below), whose sum is σ = 1062854409888. Its totient is φ = 295216204800.

The previous prime is 649498894907. The next prime is 649498894949.

649498894946 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (649498894949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117986 + ... + 1145826.

It is an arithmetic number, because the mean of its divisors is an integer number (66428400618).

Almost surely, 2^649498894946 is an apocalyptic number.

649498894946 is a deficient number, since it is larger than the sum of its proper divisors (413355514942).

649498894946 is a wasteful number, since it uses less digits than its factorization.

649498894946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056577.

The product of its digits is 3869835264, while the sum is 80.

The spelling of 649498894946 in words is "six hundred forty-nine billion, four hundred ninety-eight million, eight hundred ninety-four thousand, nine hundred forty-six".