633128745780464 has 40 divisors (see below), whose sum is σ = 1227146772736080. Its totient is φ = 316445711620608.

The previous prime is 633128745780463. The next prime is 633128745780469. The reversal of 633128745780464 is 464087547821336.

It is a super-2 number, since 2×633128745780464² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 633128745780394 and 633128745780403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633128745780463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4166917007 + ... + 4167068945.

It is an arithmetic number, because the mean of its divisors is an integer number (30678669318402).

Almost surely, 2^{633128745780464} is an apocalyptic number.

It is an amenable number.

633128745780464 is a deficient number, since it is larger than the sum of its proper divisors (594018026955616).

633128745780464 is a wasteful number, since it uses less digits than its factorization.

633128745780464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247857 (or 247851 counting only the distinct ones).

The product of its (nonzero) digits is 650280960, while the sum is 68.

The spelling of 633128745780464 in words is "six hundred thirty-three trillion, one hundred twenty-eight billion, seven hundred forty-five million, seven hundred eighty thousand, four hundred sixty-four".