6529940702480 has 40 divisors (see below), whose sum is σ = 16349966915352. Its totient is φ = 2411055028224.

The previous prime is 6529940702407. The next prime is 6529940702489. The reversal of 6529940702480 is 842070499256.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 885496056064 + 5644444646416 = 941008^2 + 2375804^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (6529940702489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3139393529 + ... + 3139395608.

Almost surely, 2^{6529940702480} is an apocalyptic number.

It is an amenable number.

6529940702480 is an abundant number, since it is smaller than the sum of its proper divisors (9820026212872).

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

6529940702480 is a wasteful number, since it uses less digits than its factorization.

6529940702480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6278789163 (or 6278789157 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 6529940702480 in words is "six trillion, five hundred twenty-nine billion, nine hundred forty million, seven hundred two thousand, four hundred eighty".