33275377081 has 4 divisors (see below), whose sum is σ = 33343704832. Its totient is φ = 33207049332.

The previous prime is 33275377063. The next prime is 33275377111. The reversal of 33275377081 is 18077357233.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18077357233 = 13 ⋅1390565941.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33275377081 is a prime.

It is a super-2 number, since 2×33275377081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33275377021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34163145 + ... + 34164118.

It is an arithmetic number, because the mean of its divisors is an integer number (8335926208).

Almost surely, 2^33275377081 is an apocalyptic number.

It is an amenable number.

33275377081 is a deficient number, since it is larger than the sum of its proper divisors (68327751).

33275377081 is an equidigital number, since it uses as much as digits as its factorization.

33275377081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68327750.

The product of its (nonzero) digits is 740880, while the sum is 46.

The spelling of 33275377081 in words is "thirty-three billion, two hundred seventy-five million, three hundred seventy-seven thousand, eighty-one".