64730046500 has 48 divisors (see below), whose sum is σ = 161566204800. Its totient is φ = 22193157600.

The previous prime is 64730046463. The next prime is 64730046503. The reversal of 64730046500 is 564003746.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (64730046503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9243650 + ... + 9250649.

It is an arithmetic number, because the mean of its divisors is an integer number (3365962600).

Almost surely, 2^64730046500 is an apocalyptic number.

It is an amenable number.

64730046500 is an abundant number, since it is smaller than the sum of its proper divisors (96836158300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64730046500 is a wasteful number, since it uses less digits than its factorization.

64730046500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18494325 (or 18494313 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 64730046500 in words is "sixty-four billion, seven hundred thirty million, forty-six thousand, five hundred".