7396781969 has 2 divisors, whose sum is σ = 7396781970. Its totient is φ = 7396781968.

The previous prime is 7396781897. The next prime is 7396781983. The reversal of 7396781969 is 9691876937.

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., 4568137744 + 2828644225 = 67588^2 + 53185^2 .

It is a cyclic number.

It is not a de Polignac number, because 7396781969 - 2¹⁶ = 7396716433 is a prime.

It is a super-2 number, since 2×7396781969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7396781989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3698390984 + 3698390985.

It is an arithmetic number, because the mean of its divisors is an integer number (3698390985).

Almost surely, 2^7396781969 is an apocalyptic number.

It is an amenable number.

7396781969 is a deficient number, since it is larger than the sum of its proper divisors (1).

7396781969 is an equidigital number, since it uses as much as digits as its factorization.

7396781969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30862944, while the sum is 65.

The square root of 7396781969 is about 86004.5462112323. The cubic root of 7396781969 is about 1948.4126436778.

The spelling of 7396781969 in words is "seven billion, three hundred ninety-six million, seven hundred eighty-one thousand, nine hundred sixty-nine".