47767261969 has 6 divisors (see below), whose sum is σ = 55565998674. Its totient is φ = 40943367360.

The previous prime is 47767261921. The next prime is 47767261991. The reversal of 47767261969 is 96916276774.

It can be written as a sum of positive squares in only one way, i.e., 30661761025 + 17105500944 = 175105^2 + 130788^2 .

It is not a de Polignac number, because 47767261969 - 2¹³ = 47767253777 is a prime.

It is a super-2 number, since 2×47767261969² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47767261969.

It is not an unprimeable number, because it can be changed into a prime (47767261169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 487420992 + ... + 487421089.

It is an arithmetic number, because the mean of its divisors is an integer number (9260999779).

Almost surely, 2^47767261969 is an apocalyptic number.

47767261969 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

47767261969 is a deficient number, since it is larger than the sum of its proper divisors (7798736705).

47767261969 is an equidigital number, since it uses as much as digits as its factorization.

47767261969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974842095 (or 974842088 counting only the distinct ones).

The product of its digits is 48009024, while the sum is 64.

The spelling of 47767261969 in words is "forty-seven billion, seven hundred sixty-seven million, two hundred sixty-one thousand, nine hundred sixty-nine".