1963849106457 has 200 divisors, whose sum is σ = 3600349648896. Its totient is φ = 1064648116224.

The previous prime is 1963849106423. The next prime is 1963849106477. The reversal of 1963849106457 is 7546019483691.

1963849106457 is a `hidden beast` number, since 1 + 9 + 6 + 38 + 49 + 106 + 457 = 666.

It is not a de Polignac number, because 1963849106457 - 2¹¹ = 1963849104409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 1963849106394 and 1963849106403.

It is not an unprimeable number, because it can be changed into a prime (1963849106477) 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 199 ways as a sum of consecutive naturals, for example, 568077273 + ... + 568080729.

Almost surely, 2^{1963849106457} is an apocalyptic number.

It is an amenable number.

1963849106457 is a deficient number, since it is larger than the sum of its proper divisors (1636500542439).

1963849106457 is an equidigital number, since it uses as much as digits as its factorization.

1963849106457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647 (or 3617 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 1963849106457 in words is "one trillion, nine hundred sixty-three billion, eight hundred forty-nine million, one hundred six thousand, four hundred fifty-seven".