1649465356828 has 48 divisors (see below), whose sum is σ = 2927131925760. Its totient is φ = 813222273024.

The previous prime is 1649465356811. The next prime is 1649465356829. The reversal of 1649465356828 is 8286535649461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649465356829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179109888 + ... + 179119096.

It is an arithmetic number, because the mean of its divisors is an integer number (60981915120).

Almost surely, 2^{1649465356828} is an apocalyptic number.

It is an amenable number.

1649465356828 is a deficient number, since it is larger than the sum of its proper divisors (1277666568932).

1649465356828 is a wasteful number, since it uses less digits than its factorization.

1649465356828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11326 (or 11324 counting only the distinct ones).

The product of its digits is 298598400, while the sum is 67.

The spelling of 1649465356828 in words is "one trillion, six hundred forty-nine billion, four hundred sixty-five million, three hundred fifty-six thousand, eight hundred twenty-eight".