64122462847 has 2 divisors, whose sum is σ = 64122462848. Its totient is φ = 64122462846.

The previous prime is 64122462839. The next prime is 64122462857. The reversal of 64122462847 is 74826422146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64122462847 - 2³ = 64122462839 is a prime.

It is a super-2 number, since 2×64122462847² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64122462797 and 64122462806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64122462857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32061231423 + 32061231424.

It is an arithmetic number, because the mean of its divisors is an integer number (32061231424).

Almost surely, 2^64122462847 is an apocalyptic number.

64122462847 is a deficient number, since it is larger than the sum of its proper divisors (1).

64122462847 is an equidigital number, since it uses as much as digits as its factorization.

64122462847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1032192, while the sum is 46.

The spelling of 64122462847 in words is "sixty-four billion, one hundred twenty-two million, four hundred sixty-two thousand, eight hundred forty-seven".