649671329223 has 12 divisors (see below), whose sum is σ = 1072473305488. Its totient is φ = 371240759520.

The previous prime is 649671329173. The next prime is 649671329261. The reversal of 649671329223 is 322923176946.

649671329223 is a `hidden beast` number, since 6 + 4 + 96 + 7 + 1 + 329 + 223 = 666.

It is not a de Polignac number, because 649671329223 - 2¹⁴ = 649671312839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 649671329223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649671329023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5156121598 + ... + 5156121723.

Almost surely, 2^649671329223 is an apocalyptic number.

649671329223 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

649671329223 is a deficient number, since it is larger than the sum of its proper divisors (422801976265).

649671329223 is a wasteful number, since it uses less digits than its factorization.

649671329223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10312243334 (or 10312243331 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The spelling of 649671329223 in words is "six hundred forty-nine billion, six hundred seventy-one million, three hundred twenty-nine thousand, two hundred twenty-three".