64121206027 has 2 divisors, whose sum is σ = 64121206028. Its totient is φ = 64121206026.

The previous prime is 64121205917. The next prime is 64121206073. The reversal of 64121206027 is 72060212146.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64121206027 is a prime.

It is a super-2 number, since 2×64121206027² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64121206027.

It is not a weakly prime, because it can be changed into another prime (64121206087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32060603013 + 32060603014.

It is an arithmetic number, because the mean of its divisors is an integer number (32060603014).

Almost surely, 2^64121206027 is an apocalyptic number.

64121206027 is a deficient number, since it is larger than the sum of its proper divisors (1).

64121206027 is an equidigital number, since it uses as much as digits as its factorization.

64121206027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 64121206027 in words is "sixty-four billion, one hundred twenty-one million, two hundred six thousand, twenty-seven".