72930216133 has 2 divisors, whose sum is σ = 72930216134. Its totient is φ = 72930216132.

The previous prime is 72930216097. The next prime is 72930216137. The reversal of 72930216133 is 33161203927.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69747225409 + 3182990724 = 264097^2 + 56418^2 .

It is a cyclic number.

It is not a de Polignac number, because 72930216133 - 2¹³ = 72930207941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72930216092 and 72930216101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72930216137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36465108066 + 36465108067.

It is an arithmetic number, because the mean of its divisors is an integer number (36465108067).

Almost surely, 2^72930216133 is an apocalyptic number.

It is an amenable number.

72930216133 is a deficient number, since it is larger than the sum of its proper divisors (1).

72930216133 is an equidigital number, since it uses as much as digits as its factorization.

72930216133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 37.

The spelling of 72930216133 in words is "seventy-two billion, nine hundred thirty million, two hundred sixteen thousand, one hundred thirty-three".