64187338723411 has 2 divisors, whose sum is σ = 64187338723412. Its totient is φ = 64187338723410.

The previous prime is 64187338723297. The next prime is 64187338723423. The reversal of 64187338723411 is 11432783378146.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64187338723411 is a prime.

It is a super-3 number, since 3×64187338723411³ (a number of 42 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (64187338723441) 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, 32093669361705 + 32093669361706.

It is an arithmetic number, because the mean of its divisors is an integer number (32093669361706).

Almost surely, 2^{64187338723411} is an apocalyptic number.

64187338723411 is a deficient number, since it is larger than the sum of its proper divisors (1).

64187338723411 is an equidigital number, since it uses as much as digits as its factorization.

64187338723411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16257024, while the sum is 58.

The spelling of 64187338723411 in words is "sixty-four trillion, one hundred eighty-seven billion, three hundred thirty-eight million, seven hundred twenty-three thousand, four hundred eleven".