64765409530 has 16 divisors (see below), whose sum is σ = 117021003264. Its totient is φ = 25807660240.

The previous prime is 64765409491. The next prime is 64765409551. The reversal of 64765409530 is 3590456746.

It is a happy number.

It is a super-2 number, since 2×64765409530² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12310186 + ... + 12315445.

It is an arithmetic number, because the mean of its divisors is an integer number (7313812704).

Almost surely, 2^64765409530 is an apocalyptic number.

64765409530 is a deficient number, since it is larger than the sum of its proper divisors (52255593734).

64765409530 is a wasteful number, since it uses less digits than its factorization.

64765409530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24625901.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 64765409530 in words is "sixty-four billion, seven hundred sixty-five million, four hundred nine thousand, five hundred thirty".