7336042781 has 2 divisors, whose sum is σ = 7336042782. Its totient is φ = 7336042780.

The previous prime is 7336042699. The next prime is 7336042789. The reversal of 7336042781 is 1872406337.

7336042781 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6258233881 + 1077808900 = 79109^2 + 32830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7336042781 is a prime.

It is a super-2 number, since 2×7336042781² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7336042789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3668021390 + 3668021391.

It is an arithmetic number, because the mean of its divisors is an integer number (3668021391).

Almost surely, 2^7336042781 is an apocalyptic number.

It is an amenable number.

7336042781 is a deficient number, since it is larger than the sum of its proper divisors (1).

7336042781 is an equidigital number, since it uses as much as digits as its factorization.

7336042781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 7336042781 is about 85650.7021629128. The cubic root of 7336042781 is about 1943.0648036302.

The spelling of 7336042781 in words is "seven billion, three hundred thirty-six million, forty-two thousand, seven hundred eighty-one".