33191275752961 has 2 divisors, whose sum is σ = 33191275752962. Its totient is φ = 33191275752960.

The previous prime is 33191275752959. The next prime is 33191275753001. The reversal of 33191275752961 is 16925757219133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16998345639025 + 16192930113936 = 4122905^2 + 4024044^2 .

It is a cyclic number.

It is not a de Polignac number, because 33191275752961 - 2¹ = 33191275752959 is a prime.

It is a super-2 number, since 2×33191275752961² (a number of 28 digits) contains 22 as substring.

Together with 33191275752959, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 33191275752961.

It is not a weakly prime, because it can be changed into another prime (33191275752161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16595637876480 + 16595637876481.

It is an arithmetic number, because the mean of its divisors is an integer number (16595637876481).

Almost surely, 2^{33191275752961} is an apocalyptic number.

It is an amenable number.

33191275752961 is a deficient number, since it is larger than the sum of its proper divisors (1).

33191275752961 is an equidigital number, since it uses as much as digits as its factorization.

33191275752961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21432600, while the sum is 61.

The spelling of 33191275752961 in words is "thirty-three trillion, one hundred ninety-one billion, two hundred seventy-five million, seven hundred fifty-two thousand, nine hundred sixty-one".