64880070530 has 24 divisors (see below), whose sum is σ = 128366026236. Its totient is φ = 23592752480.

The previous prime is 64880070527. The next prime is 64880070539. The reversal of 64880070530 is 3507008846.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63403743601 + 1476326929 = 251801^2 + 38423^2 .

It is not an unprimeable number, because it can be changed into a prime (64880070539) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 26808737 + ... + 26811156.

Almost surely, 2^64880070530 is an apocalyptic number.

64880070530 is a deficient number, since it is larger than the sum of its proper divisors (63485955706).

64880070530 is a wasteful number, since it uses less digits than its factorization.

64880070530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53619922 (or 53619911 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 64880070530 in words is "sixty-four billion, eight hundred eighty million, seventy thousand, five hundred thirty".