11757621847 has 2 divisors, whose sum is σ = 11757621848. Its totient is φ = 11757621846.

The previous prime is 11757621833. The next prime is 11757621899. The reversal of 11757621847 is 74812675711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11757621847 - 2²⁷ = 11623404119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11757621847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11757622847) 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, 5878810923 + 5878810924.

It is an arithmetic number, because the mean of its divisors is an integer number (5878810924).

Almost surely, 2^11757621847 is an apocalyptic number.

11757621847 is a deficient number, since it is larger than the sum of its proper divisors (1).

11757621847 is an equidigital number, since it uses as much as digits as its factorization.

11757621847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 658560, while the sum is 49.

The spelling of 11757621847 in words is "eleven billion, seven hundred fifty-seven million, six hundred twenty-one thousand, eight hundred forty-seven".