1649314487695 has 16 divisors (see below), whose sum is σ = 2323049905728. Its totient is φ = 1100392058880.

The previous prime is 1649314487693. The next prime is 1649314487729. The reversal of 1649314487695 is 5967844139461.

It is not a de Polignac number, because 1649314487695 - 2¹ = 1649314487693 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 1649314487695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649314487693) 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, 636799666 + ... + 636802255.

It is an arithmetic number, because the mean of its divisors is an integer number (145190619108).

Almost surely, 2^{1649314487695} is an apocalyptic number.

1649314487695 is a deficient number, since it is larger than the sum of its proper divisors (673735418033).

1649314487695 is a wasteful number, since it uses less digits than its factorization.

1649314487695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273601970.

The product of its digits is 156764160, while the sum is 67.

The spelling of 1649314487695 in words is "one trillion, six hundred forty-nine billion, three hundred fourteen million, four hundred eighty-seven thousand, six hundred ninety-five".