6529940702472 has 128 divisors (see below), whose sum is σ = 18235678095360. Its totient is φ = 1931416945920.

The previous prime is 6529940702407. The next prime is 6529940702489. The reversal of 6529940702472 is 2742070499256.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16296513 + ... + 16692399.

It is an arithmetic number, because the mean of its divisors is an integer number (142466235120).

Almost surely, 2^{6529940702472} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6529940702472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9117839047680).

6529940702472 is an abundant number, since it is smaller than the sum of its proper divisors (11705737392888).

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

6529940702472 is a wasteful number, since it uses less digits than its factorization.

6529940702472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397403 (or 397399 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 6529940702472 in words is "six trillion, five hundred twenty-nine billion, nine hundred forty million, seven hundred two thousand, four hundred seventy-two".