64606492813 has 32 divisors (see below), whose sum is σ = 72515001600. Its totient is φ = 57306009600.

The previous prime is 64606492787. The next prime is 64606492823. The reversal of 64606492813 is 31829460646.

64606492813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64606492813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64606492823) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2372845 + ... + 2399917.

It is an arithmetic number, because the mean of its divisors is an integer number (2266093800).

Almost surely, 2^64606492813 is an apocalyptic number.

It is an amenable number.

64606492813 is a deficient number, since it is larger than the sum of its proper divisors (7908508787).

64606492813 is a wasteful number, since it uses less digits than its factorization.

64606492813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27253.

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 64606492813 in words is "sixty-four billion, six hundred six million, four hundred ninety-two thousand, eight hundred thirteen".