649464152875 has 16 divisors (see below), whose sum is σ = 816718544928. Its totient is φ = 515605116000.

The previous prime is 649464152863. The next prime is 649464152879. The reversal of 649464152875 is 578251464946.

It is not a de Polignac number, because 649464152875 - 2³⁷ = 512025199403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649464152879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19814592 + ... + 19847341.

It is an arithmetic number, because the mean of its divisors is an integer number (51044909058).

Almost surely, 2^649464152875 is an apocalyptic number.

649464152875 is a deficient number, since it is larger than the sum of its proper divisors (167254392053).

649464152875 is a wasteful number, since it uses less digits than its factorization.

649464152875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39662079 (or 39662069 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 61.

The spelling of 649464152875 in words is "six hundred forty-nine billion, four hundred sixty-four million, one hundred fifty-two thousand, eight hundred seventy-five".