64697810373 has 48 divisors (see below), whose sum is σ = 111776325120. Its totient is φ = 36877680000.

The previous prime is 64697810339. The next prime is 64697810381. The reversal of 64697810373 is 37301879646.

64697810373 is a `hidden beast` number, since 6 + 469 + 7 + 8 + 103 + 73 = 666.

It is not a de Polignac number, because 64697810373 - 2¹⁷ = 64697679301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64697810323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 469548 + ... + 591498.

It is an arithmetic number, because the mean of its divisors is an integer number (2328673440).

Almost surely, 2^64697810373 is an apocalyptic number.

64697810373 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

64697810373 is a deficient number, since it is larger than the sum of its proper divisors (47078514747).

64697810373 is a wasteful number, since it uses less digits than its factorization.

64697810373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122375 (or 122362 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 64697810373 in words is "sixty-four billion, six hundred ninety-seven million, eight hundred ten thousand, three hundred seventy-three".