6540929870 has 8 divisors (see below), whose sum is σ = 11773673784. Its totient is φ = 2616371944.

The previous prime is 6540929861. The next prime is 6540929881. The reversal of 6540929870 is 789290456.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 327046484 + ... + 327046503.

It is an arithmetic number, because the mean of its divisors is an integer number (1471709223).

Almost surely, 2^6540929870 is an apocalyptic number.

6540929870 is a deficient number, since it is larger than the sum of its proper divisors (5232743914).

6540929870 is a wasteful number, since it uses less digits than its factorization.

6540929870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654092994.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 6540929870 is about 80876.0154186641. The cubic root of 6540929870 is about 1870.1645951187.

The spelling of 6540929870 in words is "six billion, five hundred forty million, nine hundred twenty-nine thousand, eight hundred seventy".