64276209401 has 2 divisors, whose sum is σ = 64276209402. Its totient is φ = 64276209400.

The previous prime is 64276209367. The next prime is 64276209409. The reversal of 64276209401 is 10490267246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56863171600 + 7413037801 = 238460^2 + 86099^2 .

It is a cyclic number.

It is not a de Polignac number, because 64276209401 - 2²⁶ = 64209100537 is a prime.

It is a super-2 number, since 2×64276209401² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64276209409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32138104700 + 32138104701.

It is an arithmetic number, because the mean of its divisors is an integer number (32138104701).

Almost surely, 2^64276209401 is an apocalyptic number.

It is an amenable number.

64276209401 is a deficient number, since it is larger than the sum of its proper divisors (1).

64276209401 is an equidigital number, since it uses as much as digits as its factorization.

64276209401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 64276209401 in words is "sixty-four billion, two hundred seventy-six million, two hundred nine thousand, four hundred one".