64513636351 has 2 divisors, whose sum is σ = 64513636352. Its totient is φ = 64513636350.

The previous prime is 64513636217. The next prime is 64513636381. The reversal of 64513636351 is 15363631546.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64513636351 - 2²³ = 64505247743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64513636298 and 64513636307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64513636381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32256818175 + 32256818176.

It is an arithmetic number, because the mean of its divisors is an integer number (32256818176).

Almost surely, 2^64513636351 is an apocalyptic number.

64513636351 is a deficient number, since it is larger than the sum of its proper divisors (1).

64513636351 is an equidigital number, since it uses as much as digits as its factorization.

64513636351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 43.

The spelling of 64513636351 in words is "sixty-four billion, five hundred thirteen million, six hundred thirty-six thousand, three hundred fifty-one".