33730278061 has 2 divisors, whose sum is σ = 33730278062. Its totient is φ = 33730278060.

The previous prime is 33730278047. The next prime is 33730278091. The reversal of 33730278061 is 16087203733.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31016493225 + 2713784836 = 176115^2 + 52094^2 .

It is a cyclic number.

It is not a de Polignac number, because 33730278061 - 2²⁵ = 33696723629 is a prime.

It is a super-2 number, since 2×33730278061² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33730278031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16865139030 + 16865139031.

It is an arithmetic number, because the mean of its divisors is an integer number (16865139031).

Almost surely, 2^33730278061 is an apocalyptic number.

It is an amenable number.

33730278061 is a deficient number, since it is larger than the sum of its proper divisors (1).

33730278061 is an equidigital number, since it uses as much as digits as its factorization.

33730278061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 33730278061 in words is "thirty-three billion, seven hundred thirty million, two hundred seventy-eight thousand, sixty-one".