6787421506 has 16 divisors (see below), whose sum is σ = 10576355328. Its totient is φ = 3264301600.

The previous prime is 6787421483. The next prime is 6787421527. The reversal of 6787421506 is 6051247876.

It is a happy number.

It is a super-4 number, since 4×6787421506⁴ (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577090 + ... + 588733.

It is an arithmetic number, because the mean of its divisors is an integer number (661022208).

Almost surely, 2^6787421506 is an apocalyptic number.

6787421506 is a deficient number, since it is larger than the sum of its proper divisors (3788933822).

6787421506 is a wasteful number, since it uses less digits than its factorization.

6787421506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165937.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 6787421506 is about 82385.8088872107. The cubic root of 6787421506 is about 1893.3675957219.

The spelling of 6787421506 in words is "six billion, seven hundred eighty-seven million, four hundred twenty-one thousand, five hundred six".