6787804140 has 72 divisors (see below), whose sum is σ = 22173501168. Its totient is φ = 1670843520.

The previous prime is 6787804129. The next prime is 6787804141. The reversal of 6787804140 is 414087876.

It is a super-2 number, since 2×6787804140² = 92148570086002279200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (6787804141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1448046 + ... + 1452725.

It is an arithmetic number, because the mean of its divisors is an integer number (307965294).

Almost surely, 2^6787804140 is an apocalyptic number.

6787804140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6787804140 is an abundant number, since it is smaller than the sum of its proper divisors (15385697028).

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

6787804140 is a wasteful number, since it uses less digits than its factorization.

6787804140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900799 (or 2900794 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 6787804140 is about 82388.1310626719. The cubic root of 6787804140 is about 1893.4031739457.

The spelling of 6787804140 in words is "six billion, seven hundred eighty-seven million, eight hundred four thousand, one hundred forty".