633672512761 has 2 divisors, whose sum is σ = 633672512762. Its totient is φ = 633672512760.

The previous prime is 633672512741. The next prime is 633672512797. The reversal of 633672512761 is 167215276336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 481275187600 + 152397325161 = 693740^2 + 390381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-633672512761 is a prime.

It is a super-3 number, since 3×633672512761³ (a number of 36 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (633672512741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316836256380 + 316836256381.

It is an arithmetic number, because the mean of its divisors is an integer number (316836256381).

Almost surely, 2^633672512761 is an apocalyptic number.

It is an amenable number.

633672512761 is a deficient number, since it is larger than the sum of its proper divisors (1).

633672512761 is an equidigital number, since it uses as much as digits as its factorization.

633672512761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 49.

The spelling of 633672512761 in words is "six hundred thirty-three billion, six hundred seventy-two million, five hundred twelve thousand, seven hundred sixty-one".