6542780662 has 8 divisors (see below), whose sum is σ = 10706368392. Its totient is φ = 2973991200.

The previous prime is 6542780597. The next prime is 6542780687. The reversal of 6542780662 is 2660872456.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148699539 + ... + 148699582.

It is an arithmetic number, because the mean of its divisors is an integer number (1338296049).

Almost surely, 2^6542780662 is an apocalyptic number.

6542780662 is a deficient number, since it is larger than the sum of its proper divisors (4163587730).

6542780662 is a wasteful number, since it uses less digits than its factorization.

6542780662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297399134.

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 6542780662 is about 80887.4567655579. The cubic root of 6542780662 is about 1870.3409695960.

The spelling of 6542780662 in words is "six billion, five hundred forty-two million, seven hundred eighty thousand, six hundred sixty-two".