64654513463 has 4 divisors (see below), whose sum is σ = 64655026248. Its totient is φ = 64654000680.

The previous prime is 64654513459. The next prime is 64654513501. The reversal of 64654513463 is 36431545646.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 64654513463 - 2² = 64654513459 is a prime.

It is a super-2 number, since 2×64654513463² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64654515463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78848 + ... + 368138.

It is an arithmetic number, because the mean of its divisors is an integer number (16163756562).

Almost surely, 2^64654513463 is an apocalyptic number.

64654513463 is a deficient number, since it is larger than the sum of its proper divisors (512785).

64654513463 is a wasteful number, since it uses less digits than its factorization.

64654513463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512784.

The product of its digits is 3110400, while the sum is 47.

The spelling of 64654513463 in words is "sixty-four billion, six hundred fifty-four million, five hundred thirteen thousand, four hundred sixty-three".