64763836745 has 16 divisors (see below), whose sum is σ = 77857102848. Its totient is φ = 51717476160.

The previous prime is 64763836741. The next prime is 64763836759. The reversal of 64763836745 is 54763836746.

64763836745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64763836745 - 2² = 64763836741 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64763836741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14104400 + ... + 14108990.

It is an arithmetic number, because the mean of its divisors is an integer number (4866068928).

Almost surely, 2^64763836745 is an apocalyptic number.

It is an amenable number.

64763836745 is a deficient number, since it is larger than the sum of its proper divisors (13093266103).

64763836745 is a wasteful number, since it uses less digits than its factorization.

64763836745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9080.

The product of its digits is 60963840, while the sum is 59.

Subtracting from 64763836745 its reverse (54763836746), we obtain a palindrome (9999999999).

The spelling of 64763836745 in words is "sixty-four billion, seven hundred sixty-three million, eight hundred thirty-six thousand, seven hundred forty-five".