1631763464657 has 16 divisors (see below), whose sum is σ = 1696281531840. Its totient is φ = 1568325028032.

The previous prime is 1631763464651. The next prime is 1631763464719. The reversal of 1631763464657 is 7564643671361.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1631763464657 - 2⁴ = 1631763464641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1631763464596 and 1631763464605.

It is not an unprimeable number, because it can be changed into a prime (1631763464651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26296694 + ... + 26358672.

It is an arithmetic number, because the mean of its divisors is an integer number (106017595740).

Almost surely, 2^{1631763464657} is an apocalyptic number.

It is an amenable number.

1631763464657 is a deficient number, since it is larger than the sum of its proper divisors (64518067183).

1631763464657 is an equidigital number, since it uses as much as digits as its factorization.

1631763464657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70672.

The product of its digits is 45722880, while the sum is 59.

The spelling of 1631763464657 in words is "one trillion, six hundred thirty-one billion, seven hundred sixty-three million, four hundred sixty-four thousand, six hundred fifty-seven".