6787898990 has 16 divisors (see below), whose sum is σ = 12226113648. Its totient is φ = 2713405056.

The previous prime is 6787898983. The next prime is 6787898993. The reversal of 6787898990 is 998987876.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6787898993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203012 + ... + 234071.

It is an arithmetic number, because the mean of its divisors is an integer number (764132103).

Almost surely, 2^6787898990 is an apocalyptic number.

6787898990 is a deficient number, since it is larger than the sum of its proper divisors (5438214658).

6787898990 is a wasteful number, since it uses less digits than its factorization.

6787898990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438643.

The product of its (nonzero) digits is 109734912, while the sum is 71.

The square root of 6787898990 is about 82388.7066896914. The cubic root of 6787898990 is about 1893.4119931186.

The spelling of 6787898990 in words is "six billion, seven hundred eighty-seven million, eight hundred ninety-eight thousand, nine hundred ninety".